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AIX system must restrict the ability to switch to the root user to members of a defined group.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-215338 | AIX7-00-003030 | SV-215338r508663_rule | Medium |
| Description |
|---|
| Configuring a supplemental group for users permitted to switch to the root user prevents unauthorized users from accessing the root account, even with knowledge of the root credentials. |
| STIG | Date |
|---|---|
| IBM AIX 7.x Security Technical Implementation Guide | 2021-11-19 |
Details
| Check Text ( C-16536r294465_chk ) |
|---|
| Examine the "sugroups" of the root user. Generally only users in the adm group should have su to root capacity. Run the following command: # lsuser -a sugroups root root sugroups=system,staff,security If "sugroups" is blank or "ALL", this is a finding. |
| Fix Text (F-16534r294466_fix) |
|---|
| Use the "chsec" command to only allow users in the adm group to su to root: # chsec -f /etc/security/user -s root -a sugroups=adm |