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[SA31207] Sidewinder and CyberGuard DNS Cache Poisoning

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Fri Jul 25 2008 - 10:24:05 CDT


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TITLE:
Sidewinder and CyberGuard DNS Cache Poisoning

SECUNIA ADVISORY ID:
SA31207

VERIFY ADVISORY:
http://secunia.com/advisories/31207/

CRITICAL:
Moderately critical

IMPACT:
Spoofing

WHERE:
From remote

OPERATING SYSTEM:
Sidewinder G2 Firewall
http://secunia.com/product/1513/
Sidewinder Firewall 7.x
http://secunia.com/product/19367/
CyberGuard 6.x
http://secunia.com/product/6773/

DESCRIPTION:
Secure Computing has acknowledged a vulnerability in Sidewinder and
CyberGuard, which can be exploited by malicious people to poison the
DNS cache.

The vulnerability is caused due to the products not sufficiently
randomising the DNS query port number. This can be exploited to
poison the DNS cache.

The vulnerability is reported in Sidewinder, CyberGuard TSP, and
CyberGuard Classic when certain configurations are used (see Secure
Computing KB Article #11446 for more information).

SOLUTION:
Apply hotfixes (please see Secure Computing KB Article #11446 for
more information).

PROVIDED AND/OR DISCOVERED BY:
Dan Kaminsky, IOActive

ORIGINAL ADVISORY:
http://www.kb.cert.org/vuls/id/MIMG-7GE5DU

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