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The at.deny file must not have an extended ACL.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22393 GEN003255 SV-26558r1_rule ECLP-1 Medium
Description
The "at" daemon control files restrict access to scheduled job manipulation and must be protected. Unauthorized modification of the at.deny file could result in Denial of Service to authorized "at" users or provide unauthorized users with the ability to run "at" jobs.
STIG Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide 2017-03-01

Details

Check Text ( C-36161r1_chk )
Check the permissions of the file.
# ls -lL /etc/at.deny
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-31412r1_fix)
Remove the extended ACL from the file.
# setfacl --remove-all /etc/at.deny