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BitDefender Buffer Overflow

BitDefender Buffer Overflow
Posted Oct 1, 2011
Authored by Vulnerability Laboratory | Site vulnerability-lab.com

BitDefender Total Internet Security 2011 suffers from a buffer overflow vulnerability.

tags | advisory, overflow
SHA-256 | dca9c1a23d348f7b802186da9fb1a8652647d74e2aa37ca25e752031aa40663f

BitDefender Buffer Overflow

Change Mirror Download
Title:
======
BitDefender IS2011 - FV Buffer Overflow Vulnerability


Date:
=====
2011-08-30


VL-ID:
=====
147


Reference:
==========
http://www.vulnerability-lab.com/get_content.php?id=147

Introduction:
=============
BitDefender Internet Security 2010 schützt die Online-Aktivitäten Ihrer Familie -ohne die PCs auszubremsen.
Es versperrt Viren, Hackern und Spam den Zutritt und bietet Schutz durch Kindersicherung und Firewall.

(Copy of the Vendor Homepage: http://www.bitdefender.com/)


Abstract:
=========
Vulnerability-Lab Team discovered a Buffer Overflow Vulnerability on BitDefender Total Internet Security 2011.


Report-Timeline:
================
2011-08-30: Public or Non-Public Disclosure


Status:
========
Published


Affected Products:
==================
BitDefender Internet Security 2011/Q2


Exploitation-Technique:
=======================
Local


Severity:
=========
Medium


Details:
========
Attackers can crash the bdfvcl.exe together with the software bitdefender 2011 by generating special crafted file-vault containers. The vulnerability
is detected on the file fault encryption module name mask. Successfull exploitation of the bug can result in software or file-fault module
shutdown via unhandled buffer overflow.

Vulnerable Module(s):
[+] File Storage => Create File Vault (File Vault Name)


--- Exception Logs ---
(970.460): Unknown exception - code c0000417 | BEX64


--- Report Logs ---
Version=1
EventType=BEX64
EventTime=129217836360862428
ReportType=2
Consent=1
UploadTime=129217836365852617
ReportIdentifier=4091e150-7ee3-11df-83ae-b62be8e4cad8
IntegratorReportIdentifier=4091e14f-7ee3-11df-83ae-b62be8e4cad8
Response.type=4
Sig[0].Name=Anwendungsname
Sig[0].Value=bdfvcl.exe
Sig[1].Name=Anwendungsversion
Sig[1].Value=14.0.19.71
Sig[2].Name=Anwendungszeitstempel
Sig[2].Value=4c1a1eeb


--- Wer Report Logs ---
<?xml version= 1.0 encoding= UTF-16 ?>
- <WERReportMetadata>
- <OSVersionInformation>
<WindowsNTVersion>6.1</WindowsNTVersion>
<Build>7600</Build>
<Product>(0x3): Windows 7 Home Premium</Product>
<Edition>HomePremium</Edition>
<BuildString>7600.16539.amd64fre.win7_gdr.100226-1909</BuildString>
<Revision>1</Revision>
<Flavor>Multiprocessor Free</Flavor>
<Architecture>X64</Architecture>
<LCID>1031</LCID>
</OSVersionInformation>
- <ParentProcessInformation>
<ParentProcessId>4940</ParentProcessId>
<ParentProcessPath>C: Program Files BitDefender BitDefender 2011 - Beta/seccenter.exe</ParentProcessPath>
<ParentProcessCmdLine> C:/Program Files/BitDefender/BitDefender 2011 - Beta/seccenter.exe/</ParentProcessCmdLine>
</ParentProcessInformation>
- <ProblemSignatures>
<EventType>BEX64</EventType>
<Parameter0>bdfvcl.exe</Parameter0>
<Parameter1>14.0.19.71</Parameter1>
<Parameter2>4c1a1eeb</Parameter2>
<Parameter4>9.0.30729.4926</Parameter4>
<Parameter5>4a1750b0</Parameter5>
<Parameter6>0000000000054fc0</Parameter6>
<Parameter7>c0000417</Parameter7>
<Parameter8>0000000000000000</Parameter8>
</ProblemSignatures>
- <DynamicSignatures>
<Parameter1>6.1.7600.2.0.0.768.3</Parameter1>
<Parameter2>1031</Parameter2>
<Parameter22>ec59</Parameter22>
<Parameter23>ec59a40c7166d65eeb69745785cf1e07</Parameter23>
<Parameter24>f06a</Parameter24>
<Parameter25>f06ab51246c5838ec5d039447d5efea2</Parameter25>
</DynamicSignatures>
- <SystemInformation>
<MID>5F7D31A6-481E-4ECA-AA14-867905CAD689</MID>
<MarkerFile>1025_Acer_Acer_Aspire 5738</MarkerFile>
<SystemManufacturer>Acer</SystemManufacturer>
<SystemProductName>Aspire 5738</SystemProductName>
<BIOSVersion>V1.18</BIOSVersion>
</SystemInformation>
</WERReportMetadata>

Reports:

../Analyses/BEX64-Appcrash-Vista-XP
../Analyses/event_log.txt
../Analyses/DMP/Mini012110-01.dmp


../Analyses/BEX64-Appcrash-Windows7/Debug/Debug-log.txt
../Analyses/BEX64-Appcrash-Windows7/DMP/WER128A.tmp.hdmp
../Analyses/BEX64-Appcrash-Windows7/DMP/WER96E4.tmp.WERInternalMetadata.xml.txt
../Analyses/BEX64-Appcrash-Windows7/DMP/WER1151.tmp.appcompat.txt
../Analyses/BEX64-Appcrash-Windows7/Crash Reports/AppCrash_bdfvcl.exe_c8126bc070dce08b638651451ee988a22a0e62a_0c865994
../Analyses/BEX64-Appcrash-Windows7/Crash Reports/AppCrash_bdfvcl.exe_c8126bc070dce08b638651451ee988a22a0e62a_01e22cfc
../Analyses/BEX64-Appcrash-Windows7/Crash Reports/AppCrash_bdfvcl.exe_c8126bc070dce08b638651451ee988a22a0e62a_1cea0fc0
../Analyses/BEX64-Appcrash-Windows7/Crash Reports/AppCrash_bdfvcl.exe_c8126bc070dce08b638651451ee988a22a0e62a_02ea965d
../Analyses/BEX64-Appcrash-Windows7/Crash Reports/AppCrash_bdfvcl.exe_c8126bc070dce08b638651451ee988a22a0e62a_17f2fd49
../Analyses/BEX64-Appcrash-Windows7/Crash Reports/AppCrash_bdfvcl.exe_c8126bc070dce08b638651451ee988a22a0e62a_1778d049

Pictures:
../win7-1.png
../win-7-2.png
../win7-3.png
../win7-4.png
../winXP-1.png


Note: The bug does not allow to overwrite registers like eip or ebx & the execution of code is not possible.


Proof of Concept:
=================
The vulnerability can be exploited by local attackers. For demonstration & reproduce ...

PoC Video: ../Video/bitdef-bof.wmv


Risk:
=====
The security risk of the local buffer overflow vulnerability are estimated as medium(-).


Credits:
========
Vulnerability Research Laboratory - Benjamin Kunz Mejri (Rem0ve)


Disclaimer:
===========
The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties,
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business
profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some
states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation
may not apply. Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability-
Lab. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of
other media, are reserved by Vulnerability-Lab or its suppliers.

Copyright © 2011|Vulnerability-Lab




--
Website: www.vulnerability-lab.com ; vuln-lab.com or vuln-db.com
Contact: admin@vulnerability-lab.com or support@vulnerability-lab.com
Phone: 01776757259

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