Vulnerability Note VU#276321

Overview

Microsoft Windows Terminal Services Advanced Client (TSAC) contains a remotely exploitable buffer overflow.

Description

The Microsoft Windows Terminal Services Advanced Client (TSAC) contains a remotely exploitable buffer overflow. This ActiveX control provides a way to deliver Terminal Services to a client using only a browser. This ActiveX control contains a buffer overflow in the code that processes input parameters.

Impact

A remote attacker can execute arbitrary code on a vulnerable system with the privileges of the victim.

Solution

Apply a patch.

Systems Affected (Learn More)

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Affected	-	27 Aug 2002

If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group	Score	Vector
Base	N/A	N/A
Temporal	N/A	N/A
Environmental	N/A	N/A

References

• http://www.microsoft.com/technet/security/bulletin/MS02-046.asp
• http://www.microsoft.com/WINDOWS2000/techinfo/administration/terminal/tsacfaq.asp

Credit

This vulnerability was discovered by Ollie Whitehouse, of @Stake.

This document was written by Ian A Finlay.

Other Information

• CVE IDs: CAN-2002-0726
• Date Public: 22 Aug 2002
• Date First Published: 27 Aug 2002
• Date Last Updated: 27 Aug 2002
• Severity Metric: 24.00
• Document Revision: 8