Microsoft CIS and RPC over HTTP Proxy components fail to properly handle responses

Overview

A vulnerability in a Microsoft HTTP Proxy component may lead to a denial of service.

Description

Microsoft’s COM Internet Sevices (CIS) and Remote Procedure Call (RPC) over HTTP Proxy contain a vulnerability that could permit an attacker to cause a denial of service. When a forwarded request is passed over either of these components to the backend system, an attacker may be able to reply to the request with a specially crafted response. This could cause the vulnerable components to stop accepting future requests. This vulnerability affects the following systems:

* Windows NT Server 4.0
* Windows NT Server 4.0, Terminal Server Edition
* Windows 2000
* Windows Server 2003  

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Impact

A remote attacker may be able to stop the vulnerable component from accepting messages. This would lead to a denial of service.

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Solution

Apply a patch from the vendor
Microsoft Security Bulletin MS04-012 contains patch information to resolve this issue.

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Vendor Information

698564

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Microsoft Corporation __ Affected

Updated: April 13, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

Microsoft Security Bulletin MS04-012 contains information regarding this issue.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23698564 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

<http://www.microsoft.com/technet/security/bulletin/ms04-012.mspx&gt;

Acknowledgements

The Microsoft Security Bulletin thanks Qualys for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

CVE IDs:	CVE-2003-0807
Severity Metric:	5.32 Date Public: