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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.


Home >> Browse Vulnerability Assessment Database >> Denial of Service >> UDP null size going to SNMP DoS


Vulnerability Assessment Details

UDP null size going to SNMP DoS

Vulnerability Assessment Summary
Crashes the remote host by sending a null UDP packet

Detailed Explanation for this Vulnerability Assessment
It was possible to
crash either the remote host or the firewall
in between us and the remote host by sending
an UDP packet of null size going to port 161 (snmp)

This flaw may permit a possible hacker to shut down
your network.

Solution : contact your firewall vendor if
it was the firewall which crashed, or filter
incoming UDP traffic if the remote host crashed.

Network Security Threat Level: High

Networks Security ID: 1009

Vulnerability Assessment Copyright: This script is Copyright (C) 2000 Renaud Deraison

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