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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

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Vulnerability Assessment Details

Kerberos PingPong attack

Vulnerability Assessment Summary
Searches for the existence of a bad krb server

Detailed Explanation for this Vulnerability Assessment

The remote host is running a kerberos server, which seems to be vulnerable
to a 'ping-pong' attack.

When contacted on the UDP port, this service always respond, even
to malformed requests.

An easy attack is 'ping-pong' in which a possible hacker spoofs a packet between
two machines running this service. This will cause them to spew characters at
each other, slowing the machines down and saturating the network.

Solution : Disable this service if you do not use it.
Network Security Threat Level: Low

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 2001 Renaud Deraison

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