Cisco 12000 Series Router ICMP Unreachable DoS

This script is (C) 2002-2013 Tenable Network Security, Inc.


Synopsis :

The remote router has a denial of service vulnerability.

Description :

The remote device appears to be a Cisco 12000 Series router.
According to its version number, it is vulnerable to a denial of
service issue. Forcing it to send a large number of ICMP unreachable
packets can slow down throughput. A remote attacker could use this to
degrade the performance of the network.

See also :

http://archives.neohapsis.com/archives/cisco/2001-q4/0005.html
http://www.nessus.org/u?e37ea3d2

Solution :

Upgrade to the latest version of the software, or disable/rate
limit the sending of ICMP unreachable packets.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.3
(CVSS2#E:H/RL:OF/RC:C)
Public Exploit Available : true

Family: CISCO

Nessus Plugin ID: 10971 (cisco_gsr_unreachable.nasl)

Bugtraq ID: 3534

CVE ID: CVE-2001-0861