Cisco Nexus 4000 Series Switches IPv6 Denial of Service (CSCtd15904)

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


Synopsis :

The remote device is missing a vendor-supplied security patch.

Description :

A vulnerability in the IP version 6 (IPv6) packet handling routine of
Cisco NX-OS Software could allow an unauthenticated, adjacent attacker
to cause a device to stop responding to neighbor solicitation (NS)
requests, causing a limited denial of service (DoS) condition.

The vulnerability is due to improper processing of adjacencies in the
IPv6 neighbor table. An attacker could exploit this vulnerability by
sending a sequence of malformed IPv6 packets to an affected device. An
exploit could allow the attacker to cause a device to stop responding to
NS requests, causing a limited DoS condition.

See also :

http://www.nessus.org/u?b45fe69b

Solution :

Apply the patch referenced in Cisco Bug Id CSCtd15904.

Risk factor :

Medium / CVSS Base Score : 6.1
(CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 5.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: CISCO

Nessus Plugin ID: 71153 ()

Bugtraq ID: 63685

CVE ID: CVE-2013-6683