Microsoft ASP.NET contains buffer overflow

Overview

Microsoft ASP.NET contains buffer overflow in routine that handles the processing of cookies in StateServer mode.

Description

ASP.NET is a programming framework provided by Microsoft. For more details about this framework, please see the official web page.

A remotely exploitable buffer overflow exists in one of the routines used to process cookies in StateServer mode. For more details, please see Microsoft Security Bulletin MS02-026.

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Impact

Microsoft states the impact as follows: “An attacker who was able to successfully exploit this vulnerability could cause the application running on the web server to restart. In addition, while Microsoft has not been able to demonstrate it, there is the possibility that an attacker could exploit this vulnerability to cause code to run on the web server. The code could run in the security context of the ASP.NET worker process, which uses an unprivileged account by default”.

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Solution

Apply the patch.

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Vendor Information

375859

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Microsoft Corporation __ Affected

Updated: July 09, 2002

Status

Affected

Vendor Statement

Please see <http://www.microsoft.com/technet/treeview/default.asp?url=/technet/security/bulletin/MS02-026.asp&gt;.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23375859 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.microsoft.com/technet/security/bulletin/MS02-026.asp&gt;
• <http://www.securityfocus.com/bid/4958&gt;
• <http://www.asp.net>

Acknowledgements

The CERT/CC thanks Microsoft for the information contained in their security bulletin.

This document was written by Ian A Finlay.

Other Information

CVE IDs:	CVE-2002-0369
Severity Metric:	28.35 Date Public: