Cisco IOS 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 exists in the DHCP implementation of Cisco IOS
Software that 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: 70316 ()

Bugtraq ID: 62644

CVE ID: CVE-2013-5475