jenkins-metasploit
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Module: Msf::Exploit::SQLi::Utils::Common
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<span class='title'><span class='object_link'><a href="../../../../Msf.html" title="Msf (module)">Msf</a></span></span> » <span class='title'><span class='object_link'><a href="../../../Exploit.html" title="Msf::Exploit (class)">Exploit</a></span></span> » <span class='title'><span class='object_link'><a href="../../SQLi.html" title="Msf::Exploit::SQLi (module)">SQLi</a></span></span> » <span class='title'><span class='object_link'><a href="../Utils.html" title="Msf::Exploit::SQLi::Utils (module)">Utils</a></span></span>
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<span class="title">Common</span>
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<div id="content"><h1>Module: Msf::Exploit::SQLi::Utils::Common
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</h1>
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<div class="box_info">
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<dl>
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<dt>Defined in:</dt>
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<dd>lib/msf/core/exploit/sqli/utils/common.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 module provides utilities used by the SQL injection library, none of the utilities are specific to SQL injection</p>
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</div>
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<div class="tags">
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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="BIT_COUNTS-constant" class="">BIT_COUNTS =
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</dt>
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<dd><pre class="code"><span class='lbrace'>{</span> <span class='int'>0</span> <span class='op'>=></span> <span class='int'>0</span><span class='comma'>,</span> <span class='int'>0b1</span> <span class='op'>=></span> <span class='int'>1</span><span class='comma'>,</span> <span class='int'>0b11</span> <span class='op'>=></span> <span class='int'>2</span><span class='comma'>,</span> <span class='int'>0b111</span> <span class='op'>=></span> <span class='int'>3</span><span class='comma'>,</span> <span class='int'>0b1111</span> <span class='op'>=></span> <span class='int'>4</span><span class='comma'>,</span> <span class='int'>0b11111</span> <span class='op'>=></span> <span class='int'>5</span><span class='comma'>,</span> <span class='int'>0b111111</span> <span class='op'>=></span> <span class='int'>6</span><span class='comma'>,</span> <span class='int'>0b1111111</span> <span class='op'>=></span> <span class='int'>7</span><span class='comma'>,</span> <span class='int'>0b11111111</span> <span class='op'>=></span> <span class='int'>8</span> <span class='rbrace'>}</span><span class='period'>.</span><span class='id identifier rubyid_freeze'>freeze</span></pre></dd>
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</dl>
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<h2>
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Class Method Summary
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<small><a href="#" class="summary_toggle">collapse</a></small>
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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="#get_bitmask-class_method" title="get_bitmask (class method)">.<strong>get_bitmask</strong>(range) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Helper method, from a range of characters, returns the MSBs that are common to all of them, and the number of changing bits @param range [Range] the range of characters you expect in the output of the query @return [Array] an array with two integers, the bitmask consisting of bits not changing between characters in the range, and the number of bits changing.</p>
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</div></span>
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</li>
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<div id="class_method_details" class="method_details_list">
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<h2>Class Method Details</h2>
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<div class="method_details first">
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<h3 class="signature first" id="get_bitmask-class_method">
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.<strong>get_bitmask</strong>(range) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>Helper method, from a range of characters, returns the MSBs that are common to all of them, and the number of changing bits</p>
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<pre class="code ruby"><code class="ruby">@param range [Range] the range of characters you expect in the output of the query
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@return [Array] an array with two integers, the bitmask consisting of bits not changing between characters in the range, and the number of bits changing
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</code></pre>
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<div class="tags">
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<p class="tag_title">Raises:</p>
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<span class='type'>(<tt>ArgumentError</tt>)</span>
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</li>
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</ul>
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</div><table class="source_code">
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<tr>
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<td>
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<pre class="code"><span class="info file"># File 'lib/msf/core/exploit/sqli/utils/common.rb', line 14</span>
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<span class='kw'>def</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_get_bitmask'>get_bitmask</span><span class='lparen'>(</span><span class='id identifier rubyid_range'>range</span><span class='rparen'>)</span>
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<span class='kw'>if</span> <span class='id identifier rubyid_range'>range</span><span class='period'>.</span><span class='id identifier rubyid_begin'>begin</span><span class='period'>.</span><span class='id identifier rubyid_is_a?'>is_a?</span><span class='lparen'>(</span><span class='const'>String</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_range'>range</span> <span class='op'>=</span> <span class='id identifier rubyid_range'>range</span><span class='period'>.</span><span class='id identifier rubyid_map'>map</span><span class='lparen'>(</span><span class='op'>&</span><span class='symbol'>:ord</span><span class='rparen'>)</span>
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<span class='kw'>else</span>
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<span class='id identifier rubyid_range'>range</span> <span class='op'>=</span> <span class='id identifier rubyid_range'>range</span><span class='period'>.</span><span class='id identifier rubyid_to_a'>to_a</span>
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<span class='kw'>end</span>
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<span class='id identifier rubyid_raise'>raise</span> <span class='const'>ArgumentError</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Invalid range</span><span class='tstring_end'>'</span></span> <span class='kw'>unless</span> <span class='id identifier rubyid_range'>range</span><span class='period'>.</span><span class='id identifier rubyid_first'>first</span> <span class='op'>>=</span> <span class='int'>0</span> <span class='op'>&&</span> <span class='id identifier rubyid_range'>range</span><span class='period'>.</span><span class='id identifier rubyid_last'>last</span> <span class='op'><=</span> <span class='int'>255</span>
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<span class='comment'># the low bits that change between the ascii codes
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</span> <span class='id identifier rubyid_bitmask'>bitmask</span> <span class='op'>=</span> <span class='id identifier rubyid_range'>range</span><span class='period'>.</span><span class='id identifier rubyid_each_cons'>each_cons</span><span class='lparen'>(</span><span class='int'>2</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_inject'>inject</span><span class='lparen'>(</span><span class='int'>0</span><span class='rparen'>)</span> <span class='lbrace'>{</span> <span class='op'>|</span><span class='id identifier rubyid_m'>m</span><span class='comma'>,</span> <span class='lparen'>(</span><span class='id identifier rubyid_v1'>v1</span><span class='comma'>,</span> <span class='id identifier rubyid_v2'>v2</span><span class='rparen'>)</span><span class='op'>|</span> <span class='id identifier rubyid_m'>m</span> <span class='op'>|</span> <span class='lparen'>(</span><span class='id identifier rubyid_v1'>v1</span> <span class='op'>^</span> <span class='id identifier rubyid_v2'>v2</span><span class='rparen'>)</span> <span class='rbrace'>}</span>
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<span class='comment'># the bits that remain the same
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</span> <span class='id identifier rubyid_known_bits'>known_bits</span> <span class='op'>=</span> <span class='id identifier rubyid_range'>range</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span> <span class='op'>&</span> <span class='op'>~</span><span class='id identifier rubyid_bitmask'>bitmask</span>
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<span class='id identifier rubyid_bits_to_guess'>bits_to_guess</span> <span class='op'>=</span> <span class='const'><span class='object_link'><a href="#BIT_COUNTS-constant" title="Msf::Exploit::SQLi::Utils::Common::BIT_COUNTS (constant)">BIT_COUNTS</a></span></span><span class='lbracket'>[</span><span class='id identifier rubyid_bitmask'>bitmask</span><span class='rbracket'>]</span>
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<span class='lbracket'>[</span><span class='id identifier rubyid_known_bits'>known_bits</span><span class='comma'>,</span> <span class='id identifier rubyid_bits_to_guess'>bits_to_guess</span><span class='rbracket'>]</span>
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<span class='kw'>end</span></pre>
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Generated on Fri May 8 17:01:56 2026 by
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0.9.37 (ruby-3.1.5).
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