Date Discovered August 9, 2011
Description The Microsoft Windows DNS Server is prone to a remote heap-based memory-corruption vulnerability.
An attacker can exploit this issue to execute arbitrary code with SYSTEM-level privileges. Successful exploits will result in the complete compromise of affected computers.
Block external access at the network boundary, unless external parties require service. Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.
Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Use NIDS to detect suspicious or anomalous network traffic. Monitor logs for signs of malicious activity.
The vendor has released an advisory and updates. Please see the references for details.
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