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Module: Msf::Exploit::SQLi::TimeBasedBlindMixin
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<span class="title">TimeBasedBlindMixin</span>
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<div id="content"><h1>Module: Msf::Exploit::SQLi::TimeBasedBlindMixin
</h1>
<div class="box_info">
<dl>
<dt>Included in:</dt>
<dd><span class='object_link'><a href="Mssqli/TimeBasedBlind.html" title="Msf::Exploit::SQLi::Mssqli::TimeBasedBlind (class)">Mssqli::TimeBasedBlind</a></span>, <span class='object_link'><a href="MySQLi/BenchmarkBasedBlind.html" title="Msf::Exploit::SQLi::MySQLi::BenchmarkBasedBlind (class)">MySQLi::BenchmarkBasedBlind</a></span>, <span class='object_link'><a href="MySQLi/TimeBasedBlind.html" title="Msf::Exploit::SQLi::MySQLi::TimeBasedBlind (class)">MySQLi::TimeBasedBlind</a></span>, <span class='object_link'><a href="PostgreSQLi/TimeBasedBlind.html" title="Msf::Exploit::SQLi::PostgreSQLi::TimeBasedBlind (class)">PostgreSQLi::TimeBasedBlind</a></span>, <span class='object_link'><a href="SQLitei/TimeBasedBlind.html" title="Msf::Exploit::SQLi::SQLitei::TimeBasedBlind (class)">SQLitei::TimeBasedBlind</a></span></dd>
</dl>
<dl>
<dt>Defined in:</dt>
<dd>lib/msf/core/exploit/sqli/time_based_blind_mixin.rb</dd>
</dl>
</div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>This module provides methods that are used for time-based SQL injections, and are common across dbms-specific implementations.</p>
</div>
</div>
<div class="tags">
</div>
<h2>
Instance Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#blind_request-instance_method" title="#blind_request (instance method)">#<strong>blind_request</strong>(query) &#x21d2; Boolean </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Performs one request, and does timing measurement, should leak one bit of information.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#run_sql-instance_method" title="#run_sql (instance method)">#<strong>run_sql</strong>(query, output_charset: nil) &#x21d2; String </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Runs an SQL query, and returns its results (time-based blind technique).</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#test_vulnerable-instance_method" title="#test_vulnerable (instance method)">#<strong>test_vulnerable</strong> &#x21d2; Boolean </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Checks if the target is vulnerable to time-based blind injection.</p>
</div></span>
</li>
</ul>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<h3 class="signature first" id="blind_request-instance_method">
#<strong>blind_request</strong>(query) &#x21d2; <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Performs one request, and does timing measurement, should leak one bit of information</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>query</span>
<span class='type'>(<tt>String</tt>)</span>
&mdash;
<div class='inline'>
<p>The SQL query to run</p>
</div>
</li>
</ul>
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
&mdash;
<div class='inline'>
<p>Whether the target slept when queried with the given payload</p>
</div>
</li>
</ul>
</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/msf/core/exploit/sqli/time_based_blind_mixin.rb', line 48</span>
<span class='kw'>def</span> <span class='id identifier rubyid_blind_request'>blind_request</span><span class='lparen'>(</span><span class='id identifier rubyid_query'>query</span><span class='rparen'>)</span>
<span class='id identifier rubyid_time'>time</span> <span class='op'>=</span> <span class='const'>Time</span><span class='period'>.</span><span class='id identifier rubyid_now'>now</span>
<span class='ivar'>@query_proc</span><span class='period'>.</span><span class='id identifier rubyid_call'>call</span><span class='lparen'>(</span><span class='id identifier rubyid_query'>query</span><span class='rparen'>)</span>
<span class='id identifier rubyid_diff'>diff</span> <span class='op'>=</span> <span class='const'>Time</span><span class='period'>.</span><span class='id identifier rubyid_now'>now</span> <span class='op'>-</span> <span class='id identifier rubyid_time'>time</span>
<span class='id identifier rubyid_diff'>diff</span> <span class='op'>&gt;=</span> <span class='id identifier rubyid_datastore'>datastore</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>SqliDelay</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="run_sql-instance_method">
#<strong>run_sql</strong>(query, output_charset: nil) &#x21d2; <tt>String</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Runs an SQL query, and returns its results (time-based blind technique)</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>query</span>
<span class='type'>(<tt>String</tt>)</span>
&mdash;
<div class='inline'>
<p>The SQL query to execute</p>
</div>
</li>
<li>
<span class='name'>output_charset</span>
<span class='type'>(<tt>Range</tt>)</span>
<em class="default">(defaults to: <tt>nil</tt>)</em>
&mdash;
<div class='inline'>
<p>The range of characters to expect in the output, optional</p>
</div>
</li>
</ul>
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>String</tt>)</span>
&mdash;
<div class='inline'>
<p>The query result</p>
</div>
</li>
</ul>
</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/msf/core/exploit/sqli/time_based_blind_mixin.rb', line 24</span>
<span class='kw'>def</span> <span class='id identifier rubyid_run_sql'>run_sql</span><span class='lparen'>(</span><span class='id identifier rubyid_query'>query</span><span class='comma'>,</span> <span class='label'>output_charset:</span> <span class='kw'>nil</span><span class='rparen'>)</span>
<span class='kw'>if</span> <span class='id identifier rubyid_output_charset'>output_charset</span><span class='period'>.</span><span class='id identifier rubyid_is_a?'>is_a?</span><span class='lparen'>(</span><span class='const'>Range</span><span class='rparen'>)</span> <span class='op'>&amp;&amp;</span> <span class='id identifier rubyid_output_charset'>output_charset</span><span class='period'>.</span><span class='id identifier rubyid_count'>count</span> <span class='op'>&gt;</span> <span class='int'>0</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='op'>=</span> <span class='const'><span class='object_link'><a href="../../../Msf.html" title="Msf (module)">Msf</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../../Exploit.html" title="Msf::Exploit (class)">Exploit</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../SQLi.html" title="Msf::Exploit::SQLi (module)">SQLi</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Utils.html" title="Msf::Exploit::SQLi::Utils (module)">Utils</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Utils/Common.html" title="Msf::Exploit::SQLi::Utils::Common (module)">Common</a></span></span><span class='period'>.</span><span class='id identifier rubyid_get_bitmask'><span class='object_link'><a href="Utils/Common.html#get_bitmask-class_method" title="Msf::Exploit::SQLi::Utils::Common.get_bitmask (method)">get_bitmask</a></span></span><span class='lparen'>(</span><span class='id identifier rubyid_output_charset'>output_charset</span><span class='rparen'>)</span>
<span class='kw'>else</span>
<span class='id identifier rubyid_known_bits'>known_bits</span> <span class='op'>=</span> <span class='int'>0</span>
<span class='id identifier rubyid_bits_to_guess'>bits_to_guess</span> <span class='op'>=</span> <span class='int'>8</span>
<span class='kw'>end</span>
<span class='id identifier rubyid_vprint_status'>vprint_status</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>{SQLi} Executing (</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_query'>query</span><span class='embexpr_end'>}</span><span class='tstring_content'>)</span><span class='tstring_end'>&quot;</span></span>
<span class='kw'>if</span> <span class='ivar'>@hex_encode_strings</span>
<span class='id identifier rubyid_query'>query</span> <span class='op'>=</span> <span class='id identifier rubyid_hex_encode_strings'>hex_encode_strings</span><span class='lparen'>(</span><span class='id identifier rubyid_query'>query</span><span class='rparen'>)</span>
<span class='id identifier rubyid_vprint_status'>vprint_status</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>{SQLi} Encoded to (</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_query'>query</span><span class='embexpr_end'>}</span><span class='tstring_content'>)</span><span class='tstring_end'>&quot;</span></span>
<span class='kw'>end</span>
<span class='comment'># first, get the length of the output
</span> <span class='id identifier rubyid_output_length'>output_length</span> <span class='op'>=</span> <span class='id identifier rubyid_blind_detect_length'>blind_detect_length</span><span class='lparen'>(</span><span class='id identifier rubyid_query'>query</span><span class='comma'>,</span> <span class='kw'>true</span><span class='rparen'>)</span>
<span class='id identifier rubyid_vprint_status'>vprint_status</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>{SQLi} Time-based injection: expecting output of length </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_output_length'>output_length</span><span class='embexpr_end'>}</span><span class='tstring_end'>&quot;</span></span>
<span class='comment'># now, get the output, of the given length
</span> <span class='id identifier rubyid_blind_dump_data'>blind_dump_data</span><span class='lparen'>(</span><span class='id identifier rubyid_query'>query</span><span class='comma'>,</span> <span class='id identifier rubyid_output_length'>output_length</span><span class='comma'>,</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='comma'>,</span> <span class='kw'>true</span><span class='rparen'>)</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="test_vulnerable-instance_method">
#<strong>test_vulnerable</strong> &#x21d2; <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Checks if the target is vulnerable to time-based blind injection. Uses time_blind_payload which is overridden by subclasses (SLEEP vs BENCHMARK).</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
&mdash;
<div class='inline'>
<p>Whether the check confirmed that the time-based SQL injection works</p>
</div>
</li>
</ul>
</div><table class="source_code">
<tr>
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<pre class="lines">
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<pre class="code"><span class="info file"># File 'lib/msf/core/exploit/sqli/time_based_blind_mixin.rb', line 11</span>
<span class='kw'>def</span> <span class='id identifier rubyid_test_vulnerable'>test_vulnerable</span>
<span class='id identifier rubyid_out_true'>out_true</span> <span class='op'>=</span> <span class='id identifier rubyid_blind_request'>blind_request</span><span class='lparen'>(</span><span class='id identifier rubyid_time_blind_payload'>time_blind_payload</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>1=1</span><span class='tstring_end'>&#39;</span></span><span class='rparen'>)</span><span class='rparen'>)</span>
<span class='id identifier rubyid_out_false'>out_false</span> <span class='op'>=</span> <span class='id identifier rubyid_blind_request'>blind_request</span><span class='lparen'>(</span><span class='id identifier rubyid_time_blind_payload'>time_blind_payload</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>1=2</span><span class='tstring_end'>&#39;</span></span><span class='rparen'>)</span><span class='rparen'>)</span>
<span class='id identifier rubyid_out_true'>out_true</span> <span class='op'>&amp;&amp;</span> <span class='op'>!</span><span class='id identifier rubyid_out_false'>out_false</span>
<span class='kw'>end</span></pre>
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