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V-215379

CAT II (Medium)

The pcnfsd daemon must be disabled on AIX.

Rule ID

SV-215379r958478_rule

STIG

IBM AIX 7.x Security Technical Implementation Guide

Version

V3R2

CCIs

CCI-000381

Discussion

The pcnfsd service is an authentication and printing program, which uses NFS to provide file transfer services. This service is vulnerable and exploitable and permits the machine to be compromised both locally and remotely. If PC NFS clients are required within the environment, Samba is recommended as an alternative software solution. The pcnfsd daemon predates Microsoft's release of SMB specifications. This service should therefore be disabled to prevent attacks.

Check Content

From the command prompt, execute the following command: 
# grep "^pcnfsd[[:blank:]]" /etc/inetd.conf

If there is any output from the command, this is a finding.

Fix Text

In "/etc/inetd.conf", comment out the "pcnfsd" entry by running command: 
# chsubserver -r inetd -C /etc/inetd.conf -d -v 'pcnfsd' -p 'udp'

Restart inetd:
# refresh -s inetd