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TITLE:
F5 Products DNS Cache Poisoning Vulnerability

SECUNIA ADVISORY ID:
SA31093

VERIFY ADVISORY:
http://secunia.com/advisories/31093/

CRITICAL:
Moderately critical

IMPACT:
Spoofing

WHERE:
>From remote

OPERATING SYSTEM:
FirePass 6.x
http://secunia.com/product/13146/
FirePass 5.x
http://secunia.com/product/4695/
BIG-IP Application Security Manager 9.x
http://secunia.com/product/17352/
BIG-IP 9.x
http://secunia.com/product/3158/
BIG-IP 4.x
http://secunia.com/product/3157/
3-DNS Controller 4.x
http://secunia.com/product/4960/
WANJet 5.x
http://secunia.com/product/19318/
F5 Enterprise Manager 1.x
http://secunia.com/product/19317/

DESCRIPTION:
A vulnerability has been reported in various F5 products, 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 transaction ID and the source port number, which
can be exploited to poison the DNS cache.

The vulnerability affects the following products and versions:
* 3-DNS versions 4.5 - 4.5.14, 4.6 - 4.6.1, and 4.6.2 - 4.6.4
* BIG-IP versions 4.5 - 4.5.14, 4.6 - 4.6.1, and 4.6.2 - 4.6.4
* BIG-IP LTM versions 9.3 - 9.3.1, 9.4 - 9.4.5, and 9.6 - 9.6.1
* BIG-IP GTM versions 9.3 - 9.3.1 and 9.4 - 9.4.5
* BIG-IP ASM versions 9.3 - 9.3.1 and 9.4 - 9.4.5
* BIG-IP Link Controller versions 9.3 - 9.3.1 and 9.4 - 9.4.5
* BIG-IP WebAccelerator versions 9.4 - 9.4.5
* BIG-IP PSM version 9.4.5
* BIG-IP SAM version 8.0
* FirePass versions 5.5 - 5.5.2 and 6.0 - 6.0.2
* Enterprise Manager versions 1.2 - 1.4.1 and 1.6
* WANJet versions 5.0 - 5.0.2

NOTE: The vulnerability only affects products for which recursion is
enabled. Reportedly only the BIG-IP LTM MSM module configured for
local bind has recursion enabled by default.

SOLUTION:
The vendor recommends disabling DNS recursion. Please see vendor's
advisory for more details.

PROVIDED AND/OR DISCOVERED BY:
Dan Kaminsky, IOActive

ORIGINAL ADVISORY:
https://support.f5.com/kb/en-us/solutions/public/8000/900/sol8938.html

OTHER REFERENCES:
US-CERT VU#800113:
http://www.kb.cert.org/vuls/id/800113

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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