The system must not have the discard service active.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECSC-1

Associated with: CCI-001436

SV-38709r1_rule The system must not have the discard service active.

Vulnerability discussion

The discard service runs as root from the inetd server and can be used in Denial of Service attacks. The discard service is unnecessary and it increases the attack vector of the system.

Check content

Check the /etc/inetd.conf file for TCP and UDP discard service entries. #grep discard /etc/inetd.conf | grep -v \# If the discard service is active, this is a finding.

Fix text

Edit /etc/inetd.conf and comment out the discard service line for both TCP and UDP protocols. Restart the inetd service. #refresh -s inetd

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