Multiple Vulnerabilities in Microsoft WINS

Reported December 14, 2004, byMicrosoft

VERSIONS AFFECTED

DESCRIPTION
Two new vulnerabilities exist in Microsoft WINS. The first vulnerability stemsfrom a flaw in the way that WINS handles computer name validation.  The other vulnerability is in the way that WINShandles association context validation. An attacker could exploit thesevulnerabilities by constructing a malicious network packet that could potentiallyallow remote code execution on an affected system.

VENDOR RESPONSE
Microsoft has released SecurityBulletin MS04-045, "Vulnerability in WINS Could Allow RemoteCode Execution (870763)," to address these vulnerabilities and recommendsthat affected users immediately apply the appropriate patch listed in thebulletin.

CREDIT
Discovered by Kostya Kortchinskyfrom CERT RENATER.