Firewall UDP Packet Source Port 53 Ruleset Bypass

This script is Copyright (C) 2003-2014 Tenable Network Security, Inc.

Synopsis :

Firewall rulesets can be bypassed.

Description :

It is possible to bypass the rules of the remote firewall by sending
UDP packets with a source port equal to 53.

An attacker may use this flaw to inject UDP packets to the remote
hosts, in spite of the presence of a firewall.

See also :

Solution :

Either contact the vendor for an update or review the firewall rules

Risk factor :

High / CVSS Base Score : 7.5
CVSS Temporal Score : 6.4
Public Exploit Available : false

Family: Firewalls

Nessus Plugin ID: 11580 (kerio_PF_udpbypass.nasl)

Bugtraq ID: 7436

CVE ID: CVE-2003-1491