Technical Description

A vulnerability has been identified in Cisco Security Agent (CSA), which could be exploited by local attackers to obtain elevated privileges. This flaw is due to a design error where software executed locally can bypass systems protections and run with elevated privileges, which could be exploited by malicious users to execute arbitrary commands with SYSTEM privileges and gain full control of the system, including the disabling of the CSA agent.

Affected Products

Cisco CSA 4.5.0 (all builds) managed and standalone agents while running on Microsoft Windows
Cisco CSA 4.5.1 (all builds) managed and standalone agents while running on Microsoft Windows
Cisco CSA for CallManager version 4.5.1 build 628
Cisco CSA for CallManager version 4.5.0 build 573
Cisco CSA for Intelligent Contact Management (ICM), IPCC Enterprise, and IPCC Hosted version 4.5.1 build 616
Cisco CSA for Cisco Voice Portal (CVP) 3.0 and 3.1 version 4.5.0 build 573

Solution

Upgrade to Management Center for Cisco Security Agents maintenance version 4.5.1.639 :
http://www.cisco.com/pcgi-bin/tablebuild.pl/csa
Upgrade to CSA for CallManager version 4.5.1.639 :
http://www.cisco.com/pcgi-bin/tablebuild.pl/cmva-3des
Upgrade to CSA for ICM, IPCC Enterprise, and IPCC Hosted version 4.5.1.639 :
http://www.cisco.com/pcgi-bin/tablebuild.pl/csa10-crypto
Upgrade to CSA for CVP 3.0 and 3.1 version 4.5.1.639 :
http://www.cisco.com/pcgi-bin/tablebuild.pl/csa-cvp-20

References

http://www.vupen.com/english/advisories/2005/2655
http://www.cisco.com/warp/public/707/cisco-sa-20051129-csa.shtml

Credits

Vulnerability reported by the vendor

ChangeLog

2005-11-29 : Initial release

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