Microsoft Security Advisory (956187): Increased Threat for DNS Spoofing Vulnerability

Microsoft released Microsoft Security Bulletin MS08-037 on July 8, 2008, offering security updates to protect customers against Windows Domain Name System (DNS) spoofing attacks. Microsoft released this update in coordination with other DNS vendors who were also similarly impacted. Since the coordinated release of these updates, the threat to DNS systems has increased due to a greater public understanding of the attacks, as well as detailed exploit code being published on the Internet.

Microsoft is not currently aware of active attacks utilizing this exploit code or of customer impact at this time. However, attacks are likely imminent due to the publicly posted proof of concept and Microsoft is actively monitoring this situation to keep customers informed and to provide customer guidance as necessary.