[NEWS] Cisco Security Agent DoS Vulnerability

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To: list@securiteam.com
Date: 27 Jul 2005 16:39:07 +0200

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  Cisco Security Agent DoS Vulnerability
------------------------------------------------------------------------

SUMMARY

" <http://www.cisco.com/en/US/products/sw/secursw/ps5057/> Cisco Security
Agent (CSA) is a network security software agent that provides threat
protection for server and desktop computing systems."

A malicious attacker may be able to send a crafted IP packet to a Windows
workstation or server running CSA causing the device to halt and/or
reload.

DETAILS

Vulnerable Systems:
 * Cisco CSA version 4.5
 * Microsoft Windows Prior to version XP

Immune Systems:
 * Cisco CSA maintenance version 4.5.1.616
 * Cisco CSA 4.0 and prior
 * Cisco CSA while running on Solaris
 * Cisco CSA while running on Linux
 * Cisco CSA while running on Windows XP

If a crafted IP packet with certain characteristics are sent to a Windows
platform running CSA 4.5, Windows will halt with a blue screen and system
crash. When exploited, the affected machine will require a reboot to
become operational again.

Vendor Status:
The vendor has released a patch:
<http://www.cisco.com/pcgi-bin/tablebuild.pl/csahf-crypto> CSA hotfix
version 4.5.0.573

ADDITIONAL INFORMATION

The information has been provided by <mailto:psirt@cisco.com> Cisco.
The original article can be found at:
<http://www.cisco.com/warp/public/707/cisco-sa-20050713-csa.shtml>
http://www.cisco.com/warp/public/707/cisco-sa-20050713-csa.shtml

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