Vulnerability Note VU#455516

Microsoft PGM vulnerable to remote code execution

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.

II. Impact

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

http://www.microsoft.com/technet/security/bulletin/ms06-052.mspx
http://secunia.com/advisories/21851/
http://www.microsoft.com/smallbusiness/support/articles/ref_net_ports_ms_prod.mspx
http://www.ietf.org/rfc/rfc3208.txt?number=3208
http://www.microsoft.com/windowsserver2003/technologies/msmq/default.mspx

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

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