The chargen daemon must be disabled on AIX.
An XCCDF Rule
Description
<VulnDiscussion>This service is used to test the integrity of TCP/IP packets arriving at the destination. This chargen service is a character generator service and is used for testing the integrity of TCP/IP packets arriving at the destination. An attacker may spoof packets between machines running the chargen service and thus provide an opportunity for DoS attacks. Disable this service to prevent attacks unless testing the network.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-215376r508663_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
In "/etc/inetd.conf", comment out the "chargen" entries by running commands:
# chsubserver -r inetd -C /etc/inetd.conf -d -v 'chargen' -p 'tcp'
# chsubserver -r inetd -C /etc/inetd.conf -d -v 'chargen' -p 'udp'
Restart inetd:
# refresh -s inetd