Cisco IOS XE Software DHCP Denial of Service Vulnerability (cisco-sa-20130925-dhcp)

This script is Copyright (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

A vulnerability in the DHCP implementation of Cisco IOS XE Software
could allow an unauthenticated, remote attacker to cause a denial of
service (DoS) condition. The vulnerability occurs during the parsing of
crafted DHCP packets. An attacker could exploit this vulnerability by
sending crafted DHCP packets to an affected device that has the DHCP
server or DHCP relay feature enabled. An exploit could allow the
attacker to cause a reload of an affected device. Cisco has released
free software updates that address this vulnerability. There are no
workarounds to this vulnerability.

See also :

http://www.nessus.org/u?79d0979c

Solution :

Apply the relevant patch referenced in Cisco Security Advisory
cisco-sa-20130925-dhcp.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.4
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: CISCO

Nessus Plugin ID: 70315 ()

Bugtraq ID: 62644

CVE ID: CVE-2013-5475