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← Back to SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

V-22442

CAT II (Medium)

The SMTP service log file must not have an extended ACL.

Rule ID

SV-45862r1_rule

STIG

SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Version

V1R12

CCIs

CCI-000225

Discussion

If the SMTP service log file has an extended ACL, unauthorized users may be allowed to access or to modify the log file.

Check Content

# more /etc/rsyslog.conf
Examine /etc/rsyslog.conf and determine the log file(s) receiving logs for "mail.crit", "mail.debug", mail.*, or "*.crit".
Check the permissions on these log files.
# ls -lL <log file>

If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.

Fix Text

This fix is applicable to both Postfix and sendmail servers.
Remove the extended ACL from the file.
# setfacl --remove-all <log file>