Title

If sendmail is not required on AIX, the sendmail service must be disabled. (Cat II impact)

Discussion

The sendmail service has many historical vulnerabilities and, where possible, should be disabled. If the system is not required to operate as a mail server i.e. sending, receiving or processing e-mail, disable the sendmail daemon.

Check Content

From the command prompt, execute the following command: # grep "^start[[:blank:]]/usr/lib/sendmail" /etc/rc.tcpip If the above command produces any output, this is a finding.

Fix Text

In "/etc/rc.tcpip", comment out the "sendmail" entry by running command: # chrctcp -d sendmail

Additional Identifiers

Rule ID: SV-215353r508663_rule

Vulnerability ID: V-215353

Group Title: SRG-OS-000095-GPOS-00049

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.