Technical Description

A new vulnerability was identified in Cisco VPN 3000 Concentrator, which may be exploited by remote attackers to conduct denial of service attacks. This flaw occurs when handling specially crafted SSL/HTTPS packets, which may cause a reload of the affected device or a denial of service.

Note : HTTPS is not enabled by default on Cisco VPN 3000 devices.

Affected Products

Cisco VPN 3000 series concentrators running software 4.1.7.A and prior.

Note : This series includes models 3005, 3015, 3020, 3030, 3060, 3080 and the Cisco VPN 3002 Hardware Client.

Solution

Upgrade to version 4.1.7.B :
http://www.cisco.com

References

http://www.vupen.com/english/advisories/2005/0303
http://www.cisco.com/warp/public/707/cisco-sa-20050330-vpn3k.shtml

Credits

Vulnerability reported by the vendor

ChangeLog

2005-03-30 : Initial release

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