The ntalk daemon must be disabled on AIX.
An XCCDF Rule
Description
<VulnDiscussion>This service establishes a two-way communication link between two users, either locally or remotely. Unless required the ntalk service will be disabled to prevent attacks.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-215375r508663_rule
- Severity
- High
- References
- Updated
Remediation - Manual Procedure
In "/etc/inetd.conf", comment out the "ntalk" entry by running command:
# chsubserver -r inetd -C /etc/inetd.conf -d -v 'ntalk' -p 'udp'
Restart inetd:
# refresh -s inetd