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The "at" daemon must not execute programs in, or subordinate to, world-writable directories.


Overview

Finding ID Version Rule ID IA Controls Severity
V-989 GEN003380 SV-989r2_rule DCSL-1 Medium
Description
If "at" programs are located in, or subordinate, to world-writable directories, they become vulnerable to removal and replacement by malicious users or system intruders.
STIG Date
AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE 2018-09-18

Details

Check Text ( C-802r2_chk )
List any "at" jobs on the system.
Procedure:
# ls /var/spool/cron/atjobs /var/spool/atjobs

For each "at" job, determine which programs are executed.
Procedure:
# more

Check the directory containing each program executed by "at" for world-writable permissions.
Procedure:
# ls -la

If "at" executes programs in world-writable directories, this is a finding.
Fix Text (F-1143r2_fix)
Remove the world-writable permission from directories containing programs executed by "at".

Procedure:
# chmod o-w