GameSpy 3D Based Games Spoofed UDP Response Amplification DDoS

This script is Copyright (C) 2003-2013 Tenable Network Security, Inc.


Synopsis :

A game server is running on the remote host.

Description :

The remote host is running a GameSpy server. This service is used to
host a gaming server.

Since it uses UDP as its transport layer and sends multiple UDP packets
in response to one request, an attacker can abuse it to flood a
third-party host with traffic by sending a spoofed UDP packet with the
IP address of their target as the source field.

See also :

http://www.nessus.org/u?7d9bb249

Solution :

Filter incoming traffic to this port or disable the service.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 5.0
(CVSS2#E:H/RL:U/RC:ND)
Public Exploit Available : true

Family: Denial of Service

Nessus Plugin ID: 11211 (gamespy_detect.nasl)

Bugtraq ID: 6636

CVE ID: CVE-2003-1354