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Cisco Trust Agent "User Notification" Authentication Bypass

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Release Date:  2007-06-12    Last Update:  2007-06-15    Views:  8,571

Secunia Advisory SA25598

Where:

Local system

Impact:

Security Bypass

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Adam Blake has reported a security issue in Cisco Trust Agent, which can be exploited by malicious people to bypass certain security restrictions.

The security issue is caused due to errors in the "user notification" feature, which displays "user notification" messages from the Cisco Secure Access Control Server (ACS) over the top of the login screen or the screen saver unlock window. This allows an attacker to access the "System preference" dialog and e.g. to change the password of administrative users when the system is performing a posture assessment.

Successful exploitation requires physical access to the system.

The vulnerability is reported in version 2.1.103.0 on Mac OS X. Other versions may also be affected.

Note: Installations on Microsoft Windows or Linux are reportedly not affected.


Solution:
Update to version 2.1.104.0.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Adam Blake, Deloitte UK

Original Advisory:
http://archives.neohapsis.com/archives/bugtraq/2007-06/0126.html

Cisco:
http://www.cisco.com/en/US/products/products_security_response09186a008085d645.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Cisco Trust Agent "User Notification" Authentication Bypass

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