The SMTP service HELP command must not be enabled on AIX.
An XCCDF Rule
Description
The HELP command should be disabled to mask version information. The version of the SMTP service software could be used by attackers to target vulnerabilities present in specific software versions.
- ID
- SV-215417r991589_rule
- Version
- AIX7-00-003122
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
To disable the SMTP service HELP command remove the HELP file using command:
# rm <helpfile_path>