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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-37520r1_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 |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2013-07-03 |
Details
| Check Text ( C-36180r1_chk ) |
|---|
| List any "at" jobs on the system. Procedure: # ls /var/spool/at For each "at" job, determine which programs are executed by "at." 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-31432r1_fix) |
|---|
| Remove the world-writable permission from directories containing programs executed by "at". Procedure: # chmod o-w |