The at daemon must not execute group-writable or world-writable programs.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-988 | GEN003360 | SV-988r6_rule | DCSL-1 | Medium |
| Description |
|---|
| If the at facility executes world-writable or group-writable programs, it is possible for the programs to be accidentally or maliciously changed or replaced without the owner's intent or knowledge. This would cause a system security breach. |
| STIG | Date |
|---|---|
| Draft AIX Security Technical Implementation Guide | 2011-08-17 |
Details
| Check Text ( C-801r3_chk ) |
|---|
| List the at jobs on the system. Procedure: # ls -la /var/spool/cron/atjobs /var/spool/atjobs For each at job file, determine which programs are executed. Procedure: # more Check each program executed by at for group- or world-writable permissions. Procedure: # ls –la If at executes group- or world-writable programs, this is a finding. |
| Fix Text (F-1142r3_fix) |
|---|
| Remove group-write and world-write permissions from files executed by at jobs. Procedure: # chmod go-w |