jenkins-metasploit
1189 lines
60 KiB
HTML
1189 lines
60 KiB
HTML
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Class: Rex::Parser::BITLOCKER
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— Documentation by YARD 0.9.37
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<span class='title'><span class='object_link'><a href="../../Rex.html" title="Rex (module)">Rex</a></span></span> » <span class='title'><span class='object_link'><a href="../Parser.html" title="Rex::Parser (module)">Parser</a></span></span>
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<span class="title">BITLOCKER</span>
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<div id="content"><h1>Class: Rex::Parser::BITLOCKER
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</h1>
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<div class="box_info">
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<dl>
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<dt>Inherits:</dt>
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<dd>
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<span class="inheritName">Object</span>
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<ul class="fullTree">
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<li>Object</li>
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<li class="next">Rex::Parser::BITLOCKER</li>
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</ul>
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<a href="#" class="inheritanceTree">show all</a>
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</dd>
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</dl>
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<dl>
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<dt>Defined in:</dt>
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<dd>lib/rex/parser/fs/bitlocker.rb</dd>
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</dl>
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</div>
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<h2>Overview</h2><div class="docstring">
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<div class="discussion">
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<p>This class parses the content of a Bitlocker partition file. Author : Danil Bazin <<a href="at">danil.bazin</a>hsc.fr> @danilbaz</p>
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</div>
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</div>
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<div class="tags">
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</div>
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<h2>
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Constant Summary
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<small><a href="#" class="constants_summary_toggle">collapse</a></small>
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</h2>
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<dl class="constants">
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<dt id="BLOCK_HEADER_SIZE-constant" class="">BLOCK_HEADER_SIZE =
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</dt>
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<dd><pre class="code"><span class='int'>64</span></pre></dd>
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<dt id="METADATA_HEADER_SIZE-constant" class="">METADATA_HEADER_SIZE =
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</dt>
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<dd><pre class="code"><span class='int'>48</span></pre></dd>
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<dt id="ENTRY_TYPE_NONE-constant" class="">ENTRY_TYPE_NONE =
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</dt>
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<dd><pre class="code"><span class='int'>0x0000</span></pre></dd>
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<dt id="ENTRY_TYPE_VMK-constant" class="">ENTRY_TYPE_VMK =
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</dt>
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<dd><pre class="code"><span class='int'>0x0002</span></pre></dd>
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<dt id="ENTRY_TYPE_FVEK-constant" class="">ENTRY_TYPE_FVEK =
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</dt>
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<dd><pre class="code"><span class='int'>0x0003</span></pre></dd>
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<dt id="ENTRY_TYPE_STARTUP_KEY-constant" class="">ENTRY_TYPE_STARTUP_KEY =
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</dt>
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<dd><pre class="code"><span class='int'>0x0006</span></pre></dd>
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<dt id="ENTRY_TYPE_DESC-constant" class="">ENTRY_TYPE_DESC =
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</dt>
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<dd><pre class="code"><span class='int'>0x0007</span></pre></dd>
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<dt id="ENTRY_TYPE_HEADER-constant" class="">ENTRY_TYPE_HEADER =
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</dt>
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<dd><pre class="code"><span class='int'>0x000f</span></pre></dd>
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<dt id="VALUE_TYPE_ERASED-constant" class="">VALUE_TYPE_ERASED =
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</dt>
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<dd><pre class="code"><span class='int'>0x0000</span></pre></dd>
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<dt id="VALUE_TYPE_KEY-constant" class="">VALUE_TYPE_KEY =
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</dt>
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<dd><pre class="code"><span class='int'>0x0001</span></pre></dd>
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<dt id="VALUE_TYPE_STRING-constant" class="">VALUE_TYPE_STRING =
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</dt>
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<dd><pre class="code"><span class='int'>0x0002</span></pre></dd>
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<dt id="VALUE_TYPE_STRETCH_KEY-constant" class="">VALUE_TYPE_STRETCH_KEY =
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</dt>
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<dd><pre class="code"><span class='int'>0x0003</span></pre></dd>
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<dt id="VALUE_TYPE_ENCRYPTED_KEY-constant" class="">VALUE_TYPE_ENCRYPTED_KEY =
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</dt>
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<dd><pre class="code"><span class='int'>0x0005</span></pre></dd>
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<dt id="VALUE_TYPE_TPM-constant" class="">VALUE_TYPE_TPM =
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</dt>
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<dd><pre class="code"><span class='int'>0x0006</span></pre></dd>
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<dt id="VALUE_TYPE_VALIDATION-constant" class="">VALUE_TYPE_VALIDATION =
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</dt>
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<dd><pre class="code"><span class='int'>0x0007</span></pre></dd>
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<dt id="VALUE_TYPE_VMK-constant" class="">VALUE_TYPE_VMK =
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</dt>
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<dd><pre class="code"><span class='int'>0x0008</span></pre></dd>
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<dt id="VALUE_TYPE_EXTERNAL_KEY-constant" class="">VALUE_TYPE_EXTERNAL_KEY =
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</dt>
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<dd><pre class="code"><span class='int'>0x0009</span></pre></dd>
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<dt id="VALUE_TYPE_UPDATE-constant" class="">VALUE_TYPE_UPDATE =
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</dt>
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<dd><pre class="code"><span class='int'>0x000a</span></pre></dd>
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<dt id="VALUE_TYPE_ERROR-constant" class="">VALUE_TYPE_ERROR =
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</dt>
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<dd><pre class="code"><span class='int'>0x000b</span></pre></dd>
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<dt id="PROTECTION_TPM-constant" class="">PROTECTION_TPM =
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</dt>
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<dd><pre class="code"><span class='int'>0x0100</span></pre></dd>
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<dt id="PROTECTION_CLEAR_KEY-constant" class="">PROTECTION_CLEAR_KEY =
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</dt>
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<dd><pre class="code"><span class='int'>0x0000</span></pre></dd>
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<dt id="PROTECTION_STARTUP_KEY-constant" class="">PROTECTION_STARTUP_KEY =
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</dt>
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<dd><pre class="code"><span class='int'>0x0200</span></pre></dd>
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<dt id="PROTECTION_RECOVERY_PASSWORD-constant" class="">PROTECTION_RECOVERY_PASSWORD =
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</dt>
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<dd><pre class="code"><span class='int'>0x0800</span></pre></dd>
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<dt id="PROTECTION_PASSWORD-constant" class="">PROTECTION_PASSWORD =
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</dt>
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<dd><pre class="code"><span class='int'>0x2000</span></pre></dd>
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</dl>
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<h2>
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Instance Method Summary
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<small><a href="#" class="summary_toggle">collapse</a></small>
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</h2>
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<ul class="summary">
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<li class="public ">
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<span class="summary_signature">
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<a href="#decrypt_aes_ccm_key-instance_method" title="#decrypt_aes_ccm_key (instance method)">#<strong>decrypt_aes_ccm_key</strong>(fve_entry, key) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'></div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#fve_entries-instance_method" title="#fve_entries (instance method)">#<strong>fve_entries</strong>(metadata_entries) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Parse the metadata_entries and return a hashmap using the following format: metadata_entry_type => metadata_value_type => [fve_entry,…].</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#fvek_entries-instance_method" title="#fvek_entries (instance method)">#<strong>fvek_entries</strong> ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Return FVEK entry, encrypted with the VMK.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#fvek_from_recovery_password-instance_method" title="#fvek_from_recovery_password (instance method)">#<strong>fvek_from_recovery_password</strong>(recoverykey) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Extract FVEK using the provided recovery key.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#fvek_from_recovery_password_dislocker-instance_method" title="#fvek_from_recovery_password_dislocker (instance method)">#<strong>fvek_from_recovery_password_dislocker</strong>(recoverykey) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Extract FVEK and prefix it with the encryption methods integer on 2 bytes.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#initialize-instance_method" title="#initialize (instance method)">#<strong>initialize</strong>(file_handler) ⇒ BITLOCKER </a>
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</span>
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<span class="note title constructor">constructor</span>
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<span class="summary_desc"><div class='inline'>
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<p>A new instance of BITLOCKER.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#recovery_key_transformation-instance_method" title="#recovery_key_transformation (instance method)">#<strong>recovery_key_transformation</strong>(recoverykey) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>stretch all the Recovery key and returns it.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#strcpy-instance_method" title="#strcpy (instance method)">#<strong>strcpy</strong>(str_src, str_dst) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Dummy strcpy to use with metasm and string asignement.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#vmk_entries-instance_method" title="#vmk_entries (instance method)">#<strong>vmk_entries</strong> ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Produce a hash map using the following format: PROTECTION_TYPE => [fve_entry, fve_entry…].</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#vmk_from_recovery_password-instance_method" title="#vmk_from_recovery_password (instance method)">#<strong>vmk_from_recovery_password</strong>(recoverykey) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>stretch recovery key with all stretch key and try to decrypt all VMK encrypted with a recovery key.</p>
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</div></span>
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</li>
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</ul>
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<div id="constructor_details" class="method_details_list">
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<h2>Constructor Details</h2>
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<div class="method_details first">
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<h3 class="signature first" id="initialize-instance_method">
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#<strong>initialize</strong>(file_handler) ⇒ <tt><span class='object_link'><a href="" title="Rex::Parser::BITLOCKER (class)">BITLOCKER</a></span></tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>Returns a new instance of BITLOCKER.</p>
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</div>
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</div>
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<div class="tags">
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</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 48</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_initialize'>initialize</span><span class='lparen'>(</span><span class='id identifier rubyid_file_handler'>file_handler</span><span class='rparen'>)</span>
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<span class='ivar'>@file_handler</span> <span class='op'>=</span> <span class='id identifier rubyid_file_handler'>file_handler</span>
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<span class='id identifier rubyid_volume_header'>volume_header</span> <span class='op'>=</span> <span class='ivar'>@file_handler</span><span class='period'>.</span><span class='id identifier rubyid_read'>read</span><span class='lparen'>(</span><span class='int'>512</span><span class='rparen'>)</span>
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<span class='ivar'>@fs_sign</span> <span class='op'>=</span> <span class='id identifier rubyid_volume_header'>volume_header</span><span class='lbracket'>[</span><span class='int'>3</span><span class='comma'>,</span> <span class='int'>8</span><span class='rbracket'>]</span>
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<span class='kw'>unless</span> <span class='ivar'>@fs_sign</span> <span class='op'>==</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>-FVE-FS-</span><span class='tstring_end'>'</span></span>
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<span class='id identifier rubyid_fail'>fail</span> <span class='const'>ArgumentError</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>File system signature does not match Bitlocker :
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#@fs_sign}, bitlocker not used</span><span class='tstring_end'>'</span></span><span class='comma'>,</span> <span class='id identifier rubyid_caller'>caller</span>
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<span class='kw'>end</span>
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<span class='ivar'>@fve_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_volume_header'>volume_header</span><span class='lbracket'>[</span><span class='int'>176</span><span class='comma'>,</span> <span class='int'>8</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Q</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='ivar'>@file_handler</span><span class='period'>.</span><span class='id identifier rubyid_seek'>seek</span><span class='lparen'>(</span><span class='ivar'>@fve_offset</span><span class='rparen'>)</span>
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<span class='ivar'>@fve_raw</span> <span class='op'>=</span> <span class='ivar'>@file_handler</span><span class='period'>.</span><span class='id identifier rubyid_read'>read</span><span class='lparen'>(</span><span class='int'>4096</span><span class='rparen'>)</span>
|
|
<span class='ivar'>@encryption_methods</span> <span class='op'>=</span> <span class='ivar'>@fve_raw</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#BLOCK_HEADER_SIZE-constant" title="Rex::Parser::BITLOCKER::BLOCK_HEADER_SIZE (constant)">BLOCK_HEADER_SIZE</a></span></span> <span class='op'>+</span> <span class='int'>36</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_size'>size</span> <span class='op'>=</span> <span class='ivar'>@fve_raw</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#BLOCK_HEADER_SIZE-constant" title="Rex::Parser::BITLOCKER::BLOCK_HEADER_SIZE (constant)">BLOCK_HEADER_SIZE</a></span></span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span> <span class='op'>-</span>
|
|
<span class='const'><span class='object_link'><a href="#METADATA_HEADER_SIZE-constant" title="Rex::Parser::BITLOCKER::METADATA_HEADER_SIZE (constant)">METADATA_HEADER_SIZE</a></span></span>
|
|
<span class='ivar'>@metadata_entries</span> <span class='op'>=</span> <span class='ivar'>@fve_raw</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#BLOCK_HEADER_SIZE-constant" title="Rex::Parser::BITLOCKER::BLOCK_HEADER_SIZE (constant)">BLOCK_HEADER_SIZE</a></span></span> <span class='op'>+</span> <span class='const'><span class='object_link'><a href="#METADATA_HEADER_SIZE-constant" title="Rex::Parser::BITLOCKER::METADATA_HEADER_SIZE (constant)">METADATA_HEADER_SIZE</a></span></span><span class='comma'>,</span>
|
|
<span class='id identifier rubyid_size'>size</span><span class='rbracket'>]</span>
|
|
<span class='ivar'>@version</span> <span class='op'>=</span> <span class='ivar'>@fve_raw</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#BLOCK_HEADER_SIZE-constant" title="Rex::Parser::BITLOCKER::BLOCK_HEADER_SIZE (constant)">BLOCK_HEADER_SIZE</a></span></span> <span class='op'>+</span> <span class='int'>4</span><span class='rbracket'>]</span>
|
|
<span class='ivar'>@fve_metadata_entries</span> <span class='op'>=</span> <span class='id identifier rubyid_fve_entries'>fve_entries</span><span class='lparen'>(</span><span class='ivar'>@metadata_entries</span><span class='rparen'>)</span>
|
|
<span class='ivar'>@vmk_entries_hash</span> <span class='op'>=</span> <span class='id identifier rubyid_vmk_entries'>vmk_entries</span>
|
|
<span class='kw'>end</span></pre>
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</td>
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</table>
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</div>
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</div>
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<div id="instance_method_details" class="method_details_list">
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<h2>Instance Method Details</h2>
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<div class="method_details first">
|
|
<h3 class="signature first" id="decrypt_aes_ccm_key-instance_method">
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|
#<strong>decrypt_aes_ccm_key</strong>(fve_entry, key) ⇒ <tt>Object</tt>
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</h3><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 107</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_decrypt_aes_ccm_key'>decrypt_aes_ccm_key</span><span class='lparen'>(</span><span class='id identifier rubyid_fve_entry'>fve_entry</span><span class='comma'>,</span> <span class='id identifier rubyid_key'>key</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_nonce'>nonce</span> <span class='op'>=</span> <span class='id identifier rubyid_fve_entry'>fve_entry</span><span class='lbracket'>[</span><span class='int'>0</span><span class='comma'>,</span> <span class='int'>12</span><span class='rbracket'>]</span>
|
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<span class='id identifier rubyid_mac'>mac</span> <span class='op'>=</span> <span class='id identifier rubyid_fve_entry'>fve_entry</span><span class='lbracket'>[</span><span class='int'>12</span><span class='comma'>,</span> <span class='int'>16</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_encrypted_data'>encrypted_data</span> <span class='op'>=</span> <span class='id identifier rubyid_fve_entry'>fve_entry</span><span class='lbracket'>[</span><span class='int'>28</span><span class='op'>..</span><span class='op'>-</span><span class='int'>1</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_ccm'>ccm</span> <span class='op'>=</span> <span class='const'>OpenSSL</span><span class='op'>::</span><span class='const'>CCM</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>AES</span><span class='tstring_end'>'</span></span><span class='comma'>,</span> <span class='id identifier rubyid_key'>key</span><span class='comma'>,</span> <span class='int'>16</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_decrypted_data'>decrypted_data</span> <span class='op'>=</span> <span class='id identifier rubyid_ccm'>ccm</span><span class='period'>.</span><span class='id identifier rubyid_decrypt'>decrypt</span><span class='lparen'>(</span><span class='id identifier rubyid_encrypted_data'>encrypted_data</span> <span class='op'>+</span> <span class='id identifier rubyid_mac'>mac</span><span class='comma'>,</span> <span class='id identifier rubyid_nonce'>nonce</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_decrypted_data'>decrypted_data</span><span class='lbracket'>[</span><span class='int'>12</span><span class='op'>..</span><span class='op'>-</span><span class='int'>1</span><span class='rbracket'>]</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
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</tr>
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</table>
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</div>
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|
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<div class="method_details ">
|
|
<h3 class="signature " id="fve_entries-instance_method">
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|
#<strong>fve_entries</strong>(metadata_entries) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
|
|
<div class="discussion">
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|
<p>Parse the metadata_entries and return a hashmap using the following format: metadata_entry_type => metadata_value_type => [fve_entry,…]</p>
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</div>
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<div class="tags">
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<td>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 119</span>
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|
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<span class='kw'>def</span> <span class='id identifier rubyid_fve_entries'>fve_entries</span><span class='lparen'>(</span><span class='id identifier rubyid_metadata_entries'>metadata_entries</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_offset_entry'>offset_entry</span> <span class='op'>=</span> <span class='int'>0</span>
|
|
<span class='id identifier rubyid_entry_size'>entry_size</span> <span class='op'>=</span> <span class='id identifier rubyid_metadata_entries'>metadata_entries</span><span class='lbracket'>[</span><span class='int'>0</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_result'>result</span> <span class='op'>=</span> <span class='const'>Hash</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='lbrace'>{</span><span class='rbrace'>}</span><span class='rparen'>)</span>
|
|
<span class='kw'>while</span> <span class='id identifier rubyid_entry_size'>entry_size</span> <span class='op'>!=</span> <span class='int'>0</span>
|
|
<span class='id identifier rubyid_metadata_entry_type'>metadata_entry_type</span> <span class='op'>=</span> <span class='id identifier rubyid_metadata_entries'>metadata_entries</span><span class='lbracket'>[</span>
|
|
<span class='id identifier rubyid_offset_entry'>offset_entry</span> <span class='op'>+</span> <span class='int'>2</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_metadata_value_type'>metadata_value_type</span> <span class='op'>=</span> <span class='id identifier rubyid_metadata_entries'>metadata_entries</span><span class='lbracket'>[</span>
|
|
<span class='id identifier rubyid_offset_entry'>offset_entry</span> <span class='op'>+</span> <span class='int'>4</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_metadata_entry'>metadata_entry</span> <span class='op'>=</span> <span class='id identifier rubyid_metadata_entries'>metadata_entries</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset_entry'>offset_entry</span> <span class='op'>+</span> <span class='int'>8</span><span class='comma'>,</span> <span class='id identifier rubyid_entry_size'>entry_size</span> <span class='op'>-</span> <span class='int'>8</span><span class='rbracket'>]</span>
|
|
<span class='kw'>if</span> <span class='id identifier rubyid_result'>result</span><span class='lbracket'>[</span><span class='id identifier rubyid_metadata_entry_type'>metadata_entry_type</span><span class='rbracket'>]</span> <span class='op'>==</span> <span class='lbrace'>{</span><span class='rbrace'>}</span>
|
|
<span class='id identifier rubyid_result'>result</span><span class='lbracket'>[</span><span class='id identifier rubyid_metadata_entry_type'>metadata_entry_type</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='lbrace'>{</span> <span class='id identifier rubyid_metadata_value_type'>metadata_value_type</span> <span class='op'>=></span> <span class='lbracket'>[</span>
|
|
<span class='id identifier rubyid_metadata_entry'>metadata_entry</span><span class='rbracket'>]</span> <span class='rbrace'>}</span>
|
|
<span class='kw'>else</span>
|
|
<span class='kw'>if</span> <span class='id identifier rubyid_result'>result</span><span class='lbracket'>[</span><span class='id identifier rubyid_metadata_entry_type'>metadata_entry_type</span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='id identifier rubyid_metadata_value_type'>metadata_value_type</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span>
|
|
<span class='id identifier rubyid_result'>result</span><span class='lbracket'>[</span><span class='id identifier rubyid_metadata_entry_type'>metadata_entry_type</span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='id identifier rubyid_metadata_value_type'>metadata_value_type</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='lbracket'>[</span>
|
|
<span class='id identifier rubyid_metadata_entry'>metadata_entry</span><span class='rbracket'>]</span>
|
|
<span class='kw'>else</span>
|
|
<span class='id identifier rubyid_result'>result</span><span class='lbracket'>[</span><span class='id identifier rubyid_metadata_entry_type'>metadata_entry_type</span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='id identifier rubyid_metadata_value_type'>metadata_value_type</span><span class='rbracket'>]</span> <span class='op'>+=</span> <span class='lbracket'>[</span>
|
|
<span class='id identifier rubyid_metadata_entry'>metadata_entry</span><span class='rbracket'>]</span>
|
|
<span class='kw'>end</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_offset_entry'>offset_entry</span> <span class='op'>+=</span> <span class='id identifier rubyid_entry_size'>entry_size</span>
|
|
<span class='kw'>if</span> <span class='id identifier rubyid_metadata_entries'>metadata_entries</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset_entry'>offset_entry</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span> <span class='op'>!=</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_end'>'</span></span>
|
|
<span class='id identifier rubyid_entry_size'>entry_size</span> <span class='op'>=</span> <span class='id identifier rubyid_metadata_entries'>metadata_entries</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset_entry'>offset_entry</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='kw'>else</span>
|
|
<span class='id identifier rubyid_entry_size'>entry_size</span> <span class='op'>=</span> <span class='int'>0</span>
|
|
<span class='kw'>end</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_result'>result</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
|
|
<div class="method_details ">
|
|
<h3 class="signature " id="fvek_entries-instance_method">
|
|
|
|
#<strong>fvek_entries</strong> ⇒ <tt>Object</tt>
|
|
|
|
|
|
|
|
|
|
|
|
</h3><div class="docstring">
|
|
<div class="discussion">
|
|
|
|
<p>Return FVEK entry, encrypted with the VMK</p>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
<div class="tags">
|
|
|
|
|
|
</div><table class="source_code">
|
|
<tr>
|
|
<td>
|
|
<pre class="lines">
|
|
|
|
|
|
214
|
|
215
|
|
216
|
|
217</pre>
|
|
</td>
|
|
<td>
|
|
<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 214</span>
|
|
|
|
<span class='kw'>def</span> <span class='id identifier rubyid_fvek_entries'>fvek_entries</span>
|
|
<span class='ivar'>@fve_metadata_entries</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#ENTRY_TYPE_FVEK-constant" title="Rex::Parser::BITLOCKER::ENTRY_TYPE_FVEK (constant)">ENTRY_TYPE_FVEK</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span>
|
|
<span class='const'><span class='object_link'><a href="#VALUE_TYPE_ENCRYPTED_KEY-constant" title="Rex::Parser::BITLOCKER::VALUE_TYPE_ENCRYPTED_KEY (constant)">VALUE_TYPE_ENCRYPTED_KEY</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#ENTRY_TYPE_NONE-constant" title="Rex::Parser::BITLOCKER::ENTRY_TYPE_NONE (constant)">ENTRY_TYPE_NONE</a></span></span><span class='rbracket'>]</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
|
|
<div class="method_details ">
|
|
<h3 class="signature " id="fvek_from_recovery_password-instance_method">
|
|
|
|
#<strong>fvek_from_recovery_password</strong>(recoverykey) ⇒ <tt>Object</tt>
|
|
|
|
|
|
|
|
|
|
|
|
</h3><div class="docstring">
|
|
<div class="discussion">
|
|
|
|
<p>Extract FVEK using the provided recovery key</p>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
<div class="tags">
|
|
|
|
|
|
</div><table class="source_code">
|
|
<tr>
|
|
<td>
|
|
<pre class="lines">
|
|
|
|
|
|
100
|
|
101
|
|
102
|
|
103
|
|
104
|
|
105</pre>
|
|
</td>
|
|
<td>
|
|
<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 100</span>
|
|
|
|
<span class='kw'>def</span> <span class='id identifier rubyid_fvek_from_recovery_password'>fvek_from_recovery_password</span><span class='lparen'>(</span><span class='id identifier rubyid_recoverykey'>recoverykey</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_vmk_recovery_password'>vmk_recovery_password</span> <span class='op'>=</span> <span class='id identifier rubyid_vmk_from_recovery_password'>vmk_from_recovery_password</span><span class='lparen'>(</span><span class='id identifier rubyid_recoverykey'>recoverykey</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_fvek_encrypted'>fvek_encrypted</span> <span class='op'>=</span> <span class='id identifier rubyid_fvek_entries'>fvek_entries</span>
|
|
<span class='id identifier rubyid_fvek'>fvek</span> <span class='op'>=</span> <span class='id identifier rubyid_decrypt_aes_ccm_key'>decrypt_aes_ccm_key</span><span class='lparen'>(</span><span class='id identifier rubyid_fvek_encrypted'>fvek_encrypted</span><span class='comma'>,</span> <span class='id identifier rubyid_vmk_recovery_password'>vmk_recovery_password</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_fvek'>fvek</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
|
|
<div class="method_details ">
|
|
<h3 class="signature " id="fvek_from_recovery_password_dislocker-instance_method">
|
|
|
|
#<strong>fvek_from_recovery_password_dislocker</strong>(recoverykey) ⇒ <tt>Object</tt>
|
|
|
|
|
|
|
|
|
|
|
|
</h3><div class="docstring">
|
|
<div class="discussion">
|
|
|
|
<p>Extract FVEK and prefix it with the encryption methods integer on 2 bytes</p>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
<div class="tags">
|
|
|
|
|
|
</div><table class="source_code">
|
|
<tr>
|
|
<td>
|
|
<pre class="lines">
|
|
|
|
|
|
72
|
|
73
|
|
74
|
|
75</pre>
|
|
</td>
|
|
<td>
|
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 72</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_fvek_from_recovery_password_dislocker'>fvek_from_recovery_password_dislocker</span><span class='lparen'>(</span><span class='id identifier rubyid_recoverykey'>recoverykey</span><span class='rparen'>)</span>
|
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<span class='lbracket'>[</span><span class='ivar'>@encryption_methods</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_pack'>pack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span> <span class='op'>+</span>
|
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<span class='id identifier rubyid_fvek_from_recovery_password'>fvek_from_recovery_password</span><span class='lparen'>(</span><span class='id identifier rubyid_recoverykey'>recoverykey</span><span class='rparen'>)</span>
|
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<span class='kw'>end</span></pre>
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<div class="method_details ">
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<h3 class="signature " id="recovery_key_transformation-instance_method">
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#<strong>recovery_key_transformation</strong>(recoverykey) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>stretch all the Recovery key and returns it</p>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 159</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_recovery_key_transformation'>recovery_key_transformation</span><span class='lparen'>(</span><span class='id identifier rubyid_recoverykey'>recoverykey</span><span class='rparen'>)</span>
|
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<span class='comment'># recovery key stretching phase 1
|
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</span> <span class='id identifier rubyid_recovery_intermediate'>recovery_intermediate</span> <span class='op'>=</span> <span class='id identifier rubyid_recoverykey'>recoverykey</span><span class='period'>.</span><span class='id identifier rubyid_split'>split</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>-</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_map'>map</span><span class='lparen'>(</span><span class='op'>&</span><span class='symbol'>:to_i</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_recovery_intermediate'>recovery_intermediate</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_n'>n</span><span class='op'>|</span>
|
|
<span class='id identifier rubyid_n'>n</span> <span class='op'>%</span> <span class='int'>11</span> <span class='op'>!=</span> <span class='int'>0</span> <span class='op'>&&</span> <span class='lparen'>(</span><span class='id identifier rubyid_fail'>fail</span> <span class='const'>ArgumentError</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Invalid recovery key</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_recovery_intermediate'>recovery_intermediate</span> <span class='op'>=</span>
|
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<span class='id identifier rubyid_recovery_intermediate'>recovery_intermediate</span><span class='period'>.</span><span class='id identifier rubyid_map'>map</span> <span class='lbrace'>{</span> <span class='op'>|</span><span class='id identifier rubyid_a'>a</span><span class='op'>|</span> <span class='lparen'>(</span><span class='id identifier rubyid_a'>a</span> <span class='op'>/</span> <span class='int'>11</span><span class='rparen'>)</span> <span class='rbrace'>}</span><span class='period'>.</span><span class='id identifier rubyid_pack'>pack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v*</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span>
|
|
|
|
<span class='comment'># recovery key stretching phase 2
|
|
</span> <span class='id identifier rubyid_recovery_keys'>recovery_keys</span> <span class='op'>=</span> <span class='lbracket'>[</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_cpu'>cpu</span> <span class='op'>=</span> <span class='const'>Metasm</span><span class='period'>.</span><span class='id identifier rubyid_const_get'>const_get</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Ia32</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span>
|
|
<span class='id identifier rubyid_exe'>exe</span> <span class='op'>=</span> <span class='const'>Metasm</span><span class='period'>.</span><span class='id identifier rubyid_const_get'>const_get</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Shellcode</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='id identifier rubyid_cpu'>cpu</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_cp'>cp</span> <span class='op'>=</span> <span class='const'>Metasm</span><span class='op'>::</span><span class='const'>C</span><span class='op'>::</span><span class='const'>Parser</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='id identifier rubyid_exe'>exe</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_bitlocker_struct_src'>bitlocker_struct_src</span> <span class='op'>=</span> <span class='heredoc_beg'><<-EOS</span>
|
|
<span class='tstring_content'> typedef struct {
|
|
unsigned char updated_hash[32];
|
|
unsigned char password_hash[32];
|
|
unsigned char salt[16];
|
|
unsigned long long int hash_count;
|
|
} bitlocker_chain_hash_t;
|
|
</span><span class='heredoc_end'> EOS
|
|
</span> <span class='id identifier rubyid_cp'>cp</span><span class='period'>.</span><span class='id identifier rubyid_parse'>parse</span> <span class='id identifier rubyid_bitlocker_struct_src'>bitlocker_struct_src</span>
|
|
<span class='id identifier rubyid_btl_struct'>btl_struct</span> <span class='op'>=</span> <span class='const'>Metasm</span><span class='op'>::</span><span class='const'>C</span><span class='op'>::</span><span class='const'>AllocCStruct</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='id identifier rubyid_cp'>cp</span><span class='comma'>,</span> <span class='id identifier rubyid_cp'>cp</span><span class='period'>.</span><span class='id identifier rubyid_find_c_struct'>find_c_struct</span><span class='lparen'>(</span>
|
|
<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>bitlocker_chain_hash_t</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_vmk_protected_by_recovery_key'>vmk_protected_by_recovery_key</span> <span class='op'>=</span> <span class='ivar'>@vmk_entries_hash</span><span class='lbracket'>[</span>
|
|
<span class='const'><span class='object_link'><a href="#PROTECTION_RECOVERY_PASSWORD-constant" title="Rex::Parser::BITLOCKER::PROTECTION_RECOVERY_PASSWORD (constant)">PROTECTION_RECOVERY_PASSWORD</a></span></span><span class='rbracket'>]</span>
|
|
<span class='kw'>if</span> <span class='id identifier rubyid_vmk_protected_by_recovery_key'>vmk_protected_by_recovery_key</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span>
|
|
<span class='id identifier rubyid_fail'>fail</span> <span class='const'>ArgumentError</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>No recovery key on disk</span><span class='tstring_end'>'</span></span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_vmk_protected_by_recovery_key'>vmk_protected_by_recovery_key</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_vmk_encrypted'>vmk_encrypted</span><span class='op'>|</span>
|
|
<span class='id identifier rubyid_vmk_encrypted_raw'>vmk_encrypted_raw</span> <span class='op'>=</span> <span class='id identifier rubyid_vmk_encrypted'>vmk_encrypted</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#ENTRY_TYPE_NONE-constant" title="Rex::Parser::BITLOCKER::ENTRY_TYPE_NONE (constant)">ENTRY_TYPE_NONE</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span>
|
|
<span class='const'><span class='object_link'><a href="#VALUE_TYPE_STRETCH_KEY-constant" title="Rex::Parser::BITLOCKER::VALUE_TYPE_STRETCH_KEY (constant)">VALUE_TYPE_STRETCH_KEY</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_stretch_key_salt'>stretch_key_salt</span> <span class='op'>=</span> <span class='id identifier rubyid_vmk_encrypted_raw'>vmk_encrypted_raw</span><span class='lbracket'>[</span><span class='int'>4</span><span class='comma'>,</span> <span class='int'>16</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_strcpy'>strcpy</span><span class='lparen'>(</span><span class='const'>Digest</span><span class='op'>::</span><span class='const'>SHA256</span><span class='period'>.</span><span class='id identifier rubyid_digest'>digest</span><span class='lparen'>(</span><span class='id identifier rubyid_recovery_intermediate'>recovery_intermediate</span><span class='rparen'>)</span><span class='comma'>,</span>
|
|
<span class='id identifier rubyid_btl_struct'>btl_struct</span><span class='period'>.</span><span class='id identifier rubyid_password_hash'>password_hash</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_strcpy'>strcpy</span><span class='lparen'>(</span><span class='id identifier rubyid_stretch_key_salt'>stretch_key_salt</span><span class='comma'>,</span> <span class='id identifier rubyid_btl_struct'>btl_struct</span><span class='period'>.</span><span class='id identifier rubyid_salt'>salt</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_btl_struct'>btl_struct</span><span class='period'>.</span><span class='id identifier rubyid_hash_count'>hash_count</span> <span class='op'>=</span> <span class='int'>0</span>
|
|
<span class='id identifier rubyid_sha256'>sha256</span> <span class='op'>=</span> <span class='const'>Digest</span><span class='op'>::</span><span class='const'>SHA256</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span>
|
|
<span class='id identifier rubyid_btl_struct_raw'>btl_struct_raw</span> <span class='op'>=</span> <span class='id identifier rubyid_btl_struct'>btl_struct</span><span class='period'>.</span><span class='id identifier rubyid_str'>str</span>
|
|
<span class='id identifier rubyid_btl_struct_hash_count_offset'>btl_struct_hash_count_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_btl_struct'>btl_struct</span><span class='period'>.</span><span class='id identifier rubyid_struct'>struct</span><span class='period'>.</span><span class='id identifier rubyid_fldoffset'>fldoffset</span><span class='lbracket'>[</span>
|
|
<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>hash_count</span><span class='tstring_end'>'</span></span><span class='rbracket'>]</span>
|
|
<span class='lparen'>(</span><span class='int'>1</span><span class='op'>..</span><span class='int'>0x100000</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_c'>c</span><span class='op'>|</span>
|
|
<span class='id identifier rubyid_updated_hash'>updated_hash</span> <span class='op'>=</span> <span class='id identifier rubyid_sha256'>sha256</span><span class='period'>.</span><span class='id identifier rubyid_digest'>digest</span><span class='lparen'>(</span><span class='id identifier rubyid_btl_struct_raw'>btl_struct_raw</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_btl_struct_raw'>btl_struct_raw</span> <span class='op'>=</span> <span class='id identifier rubyid_updated_hash'>updated_hash</span> <span class='op'>+</span> <span class='id identifier rubyid_btl_struct_raw'>btl_struct_raw</span><span class='lbracket'>[</span><span class='id identifier rubyid_btl_struct'>btl_struct</span><span class='period'>.</span><span class='id identifier rubyid_updated_hash'>updated_hash</span><span class='period'>.</span><span class='id identifier rubyid_sizeof'>sizeof</span><span class='op'>..</span><span class='lparen'>(</span>
|
|
<span class='id identifier rubyid_btl_struct_hash_count_offset'>btl_struct_hash_count_offset</span> <span class='op'>-</span> <span class='int'>1</span><span class='rparen'>)</span><span class='rbracket'>]</span> <span class='op'>+</span> <span class='lbracket'>[</span><span class='id identifier rubyid_c'>c</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_pack'>pack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Q</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_sha256'>sha256</span><span class='period'>.</span><span class='id identifier rubyid_reset'>reset</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_recovery_keys'>recovery_keys</span> <span class='op'>+=</span> <span class='lbracket'>[</span><span class='id identifier rubyid_btl_struct_raw'>btl_struct_raw</span><span class='lbracket'>[</span><span class='id identifier rubyid_btl_struct'>btl_struct</span><span class='period'>.</span><span class='id identifier rubyid_updated_hash'>updated_hash</span><span class='period'>.</span><span class='id identifier rubyid_stroff'>stroff</span><span class='comma'>,</span>
|
|
<span class='id identifier rubyid_btl_struct'>btl_struct</span><span class='period'>.</span><span class='id identifier rubyid_updated_hash'>updated_hash</span><span class='period'>.</span><span class='id identifier rubyid_sizeof'>sizeof</span><span class='rbracket'>]</span><span class='rbracket'>]</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_recovery_keys'>recovery_keys</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
|
|
<div class="method_details ">
|
|
<h3 class="signature " id="strcpy-instance_method">
|
|
|
|
#<strong>strcpy</strong>(str_src, str_dst) ⇒ <tt>Object</tt>
|
|
|
|
|
|
|
|
|
|
|
|
</h3><div class="docstring">
|
|
<div class="discussion">
|
|
|
|
<p>Dummy strcpy to use with metasm and string asignement</p>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
<div class="tags">
|
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<pre class="lines">
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|
|
</td>
|
|
<td>
|
|
<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 152</span>
|
|
|
|
<span class='kw'>def</span> <span class='id identifier rubyid_strcpy'>strcpy</span><span class='lparen'>(</span><span class='id identifier rubyid_str_src'>str_src</span><span class='comma'>,</span> <span class='id identifier rubyid_str_dst'>str_dst</span><span class='rparen'>)</span>
|
|
<span class='lparen'>(</span><span class='int'>0</span><span class='op'>..</span><span class='lparen'>(</span><span class='id identifier rubyid_str_src'>str_src</span><span class='period'>.</span><span class='id identifier rubyid_length'>length</span> <span class='op'>-</span> <span class='int'>1</span><span class='rparen'>)</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_cpt'>cpt</span><span class='op'>|</span>
|
|
<span class='id identifier rubyid_str_dst'>str_dst</span><span class='lbracket'>[</span><span class='id identifier rubyid_cpt'>cpt</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='id identifier rubyid_str_src'>str_src</span><span class='lbracket'>[</span><span class='id identifier rubyid_cpt'>cpt</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_ord'>ord</span>
|
|
<span class='kw'>end</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
|
|
<div class="method_details ">
|
|
<h3 class="signature " id="vmk_entries-instance_method">
|
|
|
|
#<strong>vmk_entries</strong> ⇒ <tt>Object</tt>
|
|
|
|
|
|
|
|
|
|
|
|
</h3><div class="docstring">
|
|
<div class="discussion">
|
|
|
|
<p>Produce a hash map using the following format: PROTECTION_TYPE => [fve_entry, fve_entry…]</p>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
<div class="tags">
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<pre class="lines">
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|
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</td>
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<td>
|
|
<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 221</span>
|
|
|
|
<span class='kw'>def</span> <span class='id identifier rubyid_vmk_entries'>vmk_entries</span>
|
|
<span class='id identifier rubyid_res'>res</span> <span class='op'>=</span> <span class='lbrace'>{</span><span class='rbrace'>}</span>
|
|
<span class='lparen'>(</span><span class='ivar'>@fve_metadata_entries</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#ENTRY_TYPE_VMK-constant" title="Rex::Parser::BITLOCKER::ENTRY_TYPE_VMK (constant)">ENTRY_TYPE_VMK</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#VALUE_TYPE_VMK-constant" title="Rex::Parser::BITLOCKER::VALUE_TYPE_VMK (constant)">VALUE_TYPE_VMK</a></span></span><span class='rbracket'>]</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_vmk'>vmk</span><span class='op'>|</span>
|
|
<span class='id identifier rubyid_protection_type'>protection_type</span> <span class='op'>=</span> <span class='id identifier rubyid_vmk'>vmk</span><span class='lbracket'>[</span><span class='int'>26</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='kw'>if</span> <span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_protection_type'>protection_type</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span>
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<span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_protection_type'>protection_type</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='lbracket'>[</span><span class='id identifier rubyid_fve_entries'>fve_entries</span><span class='lparen'>(</span><span class='id identifier rubyid_vmk'>vmk</span><span class='lbracket'>[</span><span class='int'>28</span><span class='op'>..</span><span class='op'>-</span><span class='int'>1</span><span class='rbracket'>]</span><span class='rparen'>)</span><span class='rbracket'>]</span>
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<span class='kw'>else</span>
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<span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_protection_type'>protection_type</span><span class='rbracket'>]</span> <span class='op'>+=</span> <span class='lbracket'>[</span><span class='id identifier rubyid_fve_entries'>fve_entries</span><span class='lparen'>(</span><span class='id identifier rubyid_vmk'>vmk</span><span class='lbracket'>[</span><span class='int'>28</span><span class='op'>..</span><span class='op'>-</span><span class='int'>1</span><span class='rbracket'>]</span><span class='rparen'>)</span><span class='rbracket'>]</span>
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<span class='kw'>end</span>
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<span class='kw'>end</span>
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<span class='id identifier rubyid_res'>res</span>
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<span class='kw'>end</span></pre>
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</td>
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</tr>
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</table>
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</div>
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<div class="method_details ">
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<h3 class="signature " id="vmk_from_recovery_password-instance_method">
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#<strong>vmk_from_recovery_password</strong>(recoverykey) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>stretch recovery key with all stretch key and try to decrypt all VMK encrypted with a recovery key</p>
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</div>
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</div>
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<div class="tags">
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</div><table class="source_code">
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<td>
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<pre class="lines">
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79
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83
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84
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96
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97</pre>
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</td>
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<td>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/bitlocker.rb', line 79</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_vmk_from_recovery_password'>vmk_from_recovery_password</span><span class='lparen'>(</span><span class='id identifier rubyid_recoverykey'>recoverykey</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_recovery_keys_stretched'>recovery_keys_stretched</span> <span class='op'>=</span> <span class='id identifier rubyid_recovery_key_transformation'>recovery_key_transformation</span><span class='lparen'>(</span><span class='id identifier rubyid_recoverykey'>recoverykey</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_vmk_encrypted_in_recovery_password_list'>vmk_encrypted_in_recovery_password_list</span> <span class='op'>=</span> <span class='ivar'>@vmk_entries_hash</span><span class='lbracket'>[</span>
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<span class='const'><span class='object_link'><a href="#PROTECTION_RECOVERY_PASSWORD-constant" title="Rex::Parser::BITLOCKER::PROTECTION_RECOVERY_PASSWORD (constant)">PROTECTION_RECOVERY_PASSWORD</a></span></span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_vmk_recovery_password'>vmk_recovery_password</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_end'>'</span></span>
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<span class='id identifier rubyid_vmk_encrypted_in_recovery_password_list'>vmk_encrypted_in_recovery_password_list</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_vmk'>vmk</span><span class='op'>|</span>
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<span class='id identifier rubyid_vmk_encrypted'>vmk_encrypted</span> <span class='op'>=</span> <span class='id identifier rubyid_vmk'>vmk</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#ENTRY_TYPE_NONE-constant" title="Rex::Parser::BITLOCKER::ENTRY_TYPE_NONE (constant)">ENTRY_TYPE_NONE</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#VALUE_TYPE_ENCRYPTED_KEY-constant" title="Rex::Parser::BITLOCKER::VALUE_TYPE_ENCRYPTED_KEY (constant)">VALUE_TYPE_ENCRYPTED_KEY</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_recovery_keys_stretched'>recovery_keys_stretched</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_recovery_key'>recovery_key</span><span class='op'>|</span>
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<span class='id identifier rubyid_vmk_recovery_password'>vmk_recovery_password</span> <span class='op'>=</span> <span class='id identifier rubyid_decrypt_aes_ccm_key'>decrypt_aes_ccm_key</span><span class='lparen'>(</span>
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<span class='id identifier rubyid_vmk_encrypted'>vmk_encrypted</span><span class='comma'>,</span> <span class='id identifier rubyid_recovery_key'>recovery_key</span><span class='rparen'>)</span>
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<span class='kw'>break</span> <span class='kw'>if</span> <span class='id identifier rubyid_vmk_recovery_password'>vmk_recovery_password</span> <span class='op'>!=</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_end'>'</span></span>
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<span class='kw'>end</span>
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|
<span class='kw'>break</span> <span class='kw'>if</span> <span class='id identifier rubyid_vmk_recovery_password'>vmk_recovery_password</span> <span class='op'>!=</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_end'>'</span></span>
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<span class='kw'>end</span>
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|
<span class='kw'>if</span> <span class='id identifier rubyid_vmk_recovery_password'>vmk_recovery_password</span> <span class='op'>==</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_end'>'</span></span>
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|
<span class='id identifier rubyid_fail'>fail</span> <span class='const'>ArgumentError</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Wrong decryption, bad recovery key?</span><span class='tstring_end'>'</span></span>
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<span class='kw'>end</span>
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|
<span class='id identifier rubyid_vmk_recovery_password'>vmk_recovery_password</span>
|
|
<span class='kw'>end</span></pre>
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</td>
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</tr>
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</table>
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</div>
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<div id="footer">
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Generated on Fri May 8 17:04:14 2026 by
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<a href="https://yardoc.org" title="Yay! A Ruby Documentation Tool" target="_parent">yard</a>
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0.9.37 (ruby-3.1.5).
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