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Moderately critical

Microsoft Windows DNS Client Predictable Transaction ID Vulnerability

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Description


A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious people to poison the DNS cache.

The vulnerability is caused due to the Windows DNS client using predictable transaction IDs in outgoing queries and can be exploited to poison the DNS cache when the transaction ID is guessed.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
The vendor credits:
* Amit Klein of Trusteer
* Alla Berzroutchko of Scanit
* Roy Arends of Nominet UK

Original Advisory:
MS08-020 (945553):
http://www.microsoft.com/technet/security/Bulletin/MS08-020.mspx

Amit Klein, Trusteer:
http://www.trusteer.com/docs/Microsoft_Windows_resolver_DNS_cache_poisoning.pdf

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Windows DNS Client Predictable Transaction ID Vulnerability

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