Palo Alto Networks PAN-OS 7.0.x < 7.0.6 DHCP Packet Handling Dataplane DoS

Medium Nessus Plugin ID 91971

Synopsis

The remote host is affected by a denial of service vulnerability.

Description

The version of Palo Alto Networks PAN-OS running on the remote host is 7.0.x < 7.0.6. It is, therefore, affected by a flaw in the firewall functionality that is triggered when the firewall is configured as a DHCP relay and it receives DHCP requests from a third-party client or server that exceed the payload length specified in RFC-2132. An unauthenticated, remote attacker can exploit this, via a crafted DHCP packet, to cause the dataplane to restart, resulting in a denial of service condition.

Solution

Upgrade to Palo Alto Networks PAN-OS version 7.0.6 or later.

See Also

http://www.nessus.org/u?2d18c994

Plugin Details

Severity: Medium

ID: 91971

File Name: palo_alto_pan-os_7_0_6.nasl

Version: $Revision: 1.2 $

Type: combined

Published: 2016/07/07

Modified: 2016/07/08

Dependencies: 72816

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: cpe:/o:paloaltonetworks:pan-os

Required KB Items: Host/Palo_Alto/Firewall/Version, Host/Palo_Alto/Firewall/Full_Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/03/23

Vulnerability Publication Date: 2016/03/23