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


Overview

Finding ID Version Rule ID IA Controls Severity
V-22442 GEN004510 SV-45862r1_rule Medium
Description
If the SMTP service log file has an extended ACL, unauthorized users may be allowed to access or to modify the log file.
STIG Date
SUSE Linux Enterprise Server v11 for System z 2016-12-20

Details

Check Text ( C-43157r1_chk )
# 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

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 (F-39243r1_fix)
This fix is applicable to both Postfix and sendmail servers.
Remove the extended ACL from the file.
# setfacl --remove-all