CVE-2009-0234: Input Validation
First published: Wed Mar 11 2009(Updated: )
The DNS Resolver Cache Service (aka DNSCache) in Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008 does not properly cache crafted DNS responses, which makes it easier for remote attackers to predict transaction IDs and poison caches by sending many crafted DNS queries that trigger "unnecessary lookups," aka "DNS Server Response Validation Vulnerability."
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 2000 | =sp4 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =sp1 | |
| Microsoft Windows Server | =sp1 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | =sp2 |
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Reference Links
- http://osvdb.org/52518
- http://www.vupen.com/english/advisories/2009/0661
- http://blogs.technet.com/srd/archive/2009/03/13/ms09-008-dns-and-wins-server-security-update-in-more-detail.aspx
- http://www.securitytracker.com/id?1021831
- http://secunia.com/advisories/34217
- http://www.securityfocus.com/bid/33988
- http://support.avaya.com/elmodocs2/security/ASA-2009-083.htm
- http://www.kb.cert.org/vuls/id/319331
- http://www.us-cert.gov/cas/techalerts/TA09-069A.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5715
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-008
Frequently Asked Questions
What is the severity of CVE-2009-0234?
CVE-2009-0234 is considered to have a critical severity level due to its potential for cache poisoning and exploitation by remote attackers.
How do I fix CVE-2009-0234?
To fix CVE-2009-0234, apply the relevant Microsoft security updates for Windows 2000 SP4, Server 2003, and Server 2008.
Which systems are affected by CVE-2009-0234?
CVE-2009-0234 affects Microsoft Windows 2000 SP4, Windows Server 2003 SP1 and SP2, and Windows Server 2008.
What type of vulnerability is CVE-2009-0234?
CVE-2009-0234 is a type of cache poisoning vulnerability that allows attackers to predict transaction IDs in the DNS Resolver Cache Service.
Can CVE-2009-0234 lead to data compromise?
Yes, CVE-2009-0234 can lead to data compromise by allowing attackers to poison DNS caches and redirect users to malicious sites.
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