If sendmail is not required on AIX, the sendmail service must be disabled.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-215353 | SRG-OS-000095-GPOS-00049 | AIX7-00-003047 | SV-215353r958478_rule | 2026-02-06 | 3 |
Description
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.
ℹ️ Check
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
In "/etc/rc.tcpip", comment out the "sendmail" entry by running command:
# chrctcp -d sendmail