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TITLE:
Juniper Networks Products DNS Cache Poisoning Vulnerability

SECUNIA ADVISORY ID:
SA31012

VERIFY ADVISORY:
http://secunia.com/advisories/31012/

CRITICAL:
Moderately critical

IMPACT:
Spoofing

WHERE:
>From remote

OPERATING SYSTEM:
JUNOS 8.x
http://secunia.com/product/10974/
NetScreen ScreenOS 6.x
http://secunia.com/product/18925/
NetScreen ScreenOS 5.x
http://secunia.com/product/2569/

DESCRIPTION:
A vulnerability has been reported in various Juniper Network
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 following products are affected:
* Network firewalls running ScreenOS software
* J-series routers running JUNOS Enhanced Services Software
(junos-jsr) built prior to May 23, 2008.
* Juniper switching products running JUNOS Enhanced Switching
Software (junos-ex) built prior to May 23, 2008.

SOLUTION:
Contact Juniper Networks Customer Support Center for product
updates.
https://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2008-06-040&viewMode=view

PROVIDED AND/OR DISCOVERED BY:
Dan Kaminsky, IOActive

ORIGINAL ADVISORY:
http://www.kb.cert.org/vuls/id/MIMG-7DWR4Z

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.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
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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