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[SA21616] Cisco Firewall Products Unintentional Password Modification

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Aug 24 2006 - 03:47:04 CDT


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TITLE:
Cisco Firewall Products Unintentional Password Modification

SECUNIA ADVISORY ID:
SA21616

VERIFY ADVISORY:
http://secunia.com/advisories/21616/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass

WHERE:
From remote

OPERATING SYSTEM:
Cisco PIX 7.x
http://secunia.com/product/6102/
Cisco Adaptive Security Appliance (ASA) 7.x
http://secunia.com/product/6115/

SOFTWARE:
Cisco Firewall Services Module (FWSM) 3.x
http://secunia.com/product/8614/
Cisco Firewall Services Module (FWSM) 2.x
http://secunia.com/product/5088/
Cisco Firewall Services Module (FWSM) 1.x
http://secunia.com/product/2273/

DESCRIPTION:
A security issue has been reported in various Cisco Firewall
products, which may allow malicious people to bypass certain security
restrictions.

The problem is caused due to an error resulting in certain passwords
(EXEC password, passwords of locally defined usernames, and the
enable password in the start-up configuration) being unintentionally
changed to a non-random value without user intervention.

The error may happen during a software crash or multiple users
configuring a device at the same time.

This may result in users being locked out or lead to unauthorised
access to an affected device.

SOLUTION:
Update to a fixed version (see the vendor's advisory for details).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Terje Bless, Helse Nord IKT.

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