Check: GEN003380
AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE:
GEN003380
(in versions v1 r14 through v1 r10)
Title
The "at" daemon must not execute programs in, or subordinate to, world-writable directories. (Cat II impact)
Discussion
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.
Check Content
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 <at job file> Check the directory containing each program executed by "at" for world-writable permissions. Procedure: # ls -la <at program file directory> If "at" executes programs in world-writable directories, this is a finding.
Fix Text
Remove the world-writable permission from directories containing programs executed by "at". Procedure: # chmod o-w <at program directory>
Additional Identifiers
Rule ID: SV-989r2_rule
Vulnerability ID: V-989
Group Title: GEN003380
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000225 |
The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions. |
Controls
| Number | Title |
|---|---|
| AC-6 |
Least Privilege |