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The 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-22308 | GEN000850 | SV-37345r1_rule | ECLP-1 | Low |
| 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 |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2016-06-01 |
Details
| Check Text ( C-27453r1_chk ) |
|---|
| Check /etc/pam.d/su uses pam_wheel. # grep pam_wheel /etc/pam.d/su If pam_wheel is not present, or is commented out, this is a finding. |
| Fix Text (F-31282r1_fix) |
|---|
| Edit /etc/pam.d/su and uncomment or add a line such as "auth required pam_wheel.so". If necessary, create a "wheel" group and add administrative users to the group. |