Microsoft Windows DNS Service Cache Poisoning Vulnerability - Advisories

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Microsoft Windows DNS Service Cache Poisoning Vulnerability

Secunia Advisory:	SA27584
Release Date:	2007-11-13
Last Update:	2007-11-14

Critical:	Moderately critical
Impact:	Spoofing
Where:	From remote
Solution Status:	Vendor Patch

OS:	Microsoft Windows 2000 Advanced Server Microsoft Windows 2000 Datacenter Server Microsoft Windows 2000 Server Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Web Edition


CVE reference:	CVE-2007-3898 (Secunia mirror)

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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 DNS service (dns.exe) using predictable transaction values when sending out queries to upstream DNS servers. This can be exploited to poison the DNS cache via a specially crafted DNS response with a guessed transaction value when the DNS server performs a recursive lookup. Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector. Solution: Apply patches. Microsoft Windows 2000 Server SP4: http://www.microsoft.com/downloads/de...=c80fcd9b-d0f8-44db-96fc-bf2ead054ff4 Windows Server 2003 SP1/SP2: http://www.microsoft.com/downloads/de...=ed8e2cb4-bcd9-40fc-9ad6-46b364d0656d Windows Server 2003 x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/de...=d1323e14-ffa7-4d03-a2a7-9240c192a75e Windows Server 2003 with SP1/SP2 for Itanium-based systems: http://www.microsoft.com/downloads/de...=f3ad67de-85ad-452d-a1e0-0af3faf969d6 Provided and/or discovered by: The vendor credits: * Amit Klein, Trusteer. * Alla Berzroutchko, Scanit. Changelog: 2007-11-14: Added link to US-CERT. Added link to Scanit. Original Advisory: MS07-062 (KB941672): http://www.microsoft.com/technet/security/Bulletin/MS07-062.mspx Scanit: http://www.scanit.be/advisory-2007-11-14.html Other References: US-CERT VU#484649: http://www.kb.cert.org/vuls/id/484649



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise. Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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