Secunia Research: TSC2 Help Desk CTab ActiveX Control Buffer Overflow
======================================================================
Secunia Research 07/01/2009
- TSC2 Help Desk CTab ActiveX Control Buffer Overflow -
======================================================================
Table of Contents
Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10
======================================================================
1) Affected Software
* TSC2 Help Desk 4.1.8
NOTE: Other versions may also be affected.
======================================================================
2) Severity
Rating: Highly critical
Impact: System compromise
Where: Remote
======================================================================
3) Vendor's Description of Software
"TSC2 Help Desk from is full-featured, easy to use help desk software
that will help you manage your support issues and assets.".
Product Link:
http://www.tsc2-helpdesk.com/
======================================================================
4) Description of Vulnerability
Secunia Research has discovered a vulnerability in TSC2 Help Desk,
which can be exploited by malicious people to potentially compromise
a user's system.
The vulnerability is caused due to a boundary error in the included
CTab ActiveX control (c1sizer.ocx) when copying tab captions. This
can be exploited to cause a heap-based buffer overflow by e.g. adding
multiple tabs via the "AddTab()" method.
Successful exploitation may allow execution of arbitrary code.
======================================================================
5) Solution
Set the kill-bit for the affected ActiveX control.
======================================================================
6) Time Table
13/11/2008 - Vendor notified.
07/01/2009 - Public disclosure.
======================================================================
7) Credits
Discovered by Carsten Eiram, Secunia Research.
======================================================================
8) References
The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2008-4827 for the vulnerability.
======================================================================
9) About Secunia
Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:
http://secunia.com/advisories/business_solutions/
Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.
http://secunia.com/advisories/
Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:
http://secunia.com/secunia_research/
Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:
http://secunia.com/corporate/jobs/
Secunia offers a FREE mailing list called Secunia Security Advisories:
http://secunia.com/advisories/mailing_lists/
======================================================================
10) Verification
Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2008-54/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
======================================================================