Vulnerability Note VU#455516

Microsoft PGM vulnerable to remote code execution

Original Release date: 12 Sep 2006 | Last revised: 13 Sep 2006

Overview

A buffer overflow vulnerability in Microsoft's Pragmatic General Multicast (PGM) protocol implementation may allow an attacker to execute arbitrary code.

Description

The Pragmatic General Multicast (PGM) protocol is an experimental protocol defined in RFC 3208. Microsoft's implementation of the PGM protocol is the Microsoft Message Queuing Services (MSMQ).

A buffer overflow vulnerability exists in the MSMQ service that may allow a remote, unauthenticated attacker to execute arbitrary code. An attacker may be able to send a specially-crafted message that triggers the overflow when received by a vulnerable system.

Per Microsoft, primarily Windows XP is affected by this vulnerability.

Impact

A remote, unauthenticated attacker can run arbitrary code with system privileges.

Solution

Upgrade
Microsoft has released an update that addresses this issue.


Do not install unnecessary services
The MSMQ service is not installed by default on Windows XP systems. Do not install this service unless multicast support is required.

Restrict access
MSMQ uses the ports listed in the Message Queuing section of Network Ports Used by Key Microsoft Server Products.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-12 Sep 2006
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

Credit

Thanks to Microsoft for supplying information on this vulnerability. Microsoft thanks David Warden of NuPaper Inc. for reporting this vulnerability.

This document was written by Ryan Giobbi.

Other Information

  • CVE IDs: CVE-2006-3442
  • Date Public: 12 Sep 2006
  • Date First Published: 12 Sep 2006
  • Date Last Updated: 13 Sep 2006
  • Severity Metric: 9.95
  • Document Revision: 32

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