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AIX /etc/security/mkuser.sys.custom file must not exist unless it is needed for customizing a new user account.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-91213 | AIX7-00-001000 | SV-101313r1_rule | Medium |
| Description |
|---|
| The "/etc/security/mkuser.sys.custom" is called by "/etc/security/mkuser.sys" to customize the new user account when a new user is created, or a user is logging into the system without a home directory. An improper "/etc/security/mkuser.sys.custom" script increases the risk that non-privileged users may obtain elevated privileges. It must not exist unless it is needed. |
| STIG | Date |
|---|---|
| IBM AIX 7.x Security Technical Implementation Guide | 2020-02-24 |
Details
| Check Text ( C-90369r1_chk ) |
|---|
| Check if the "/etc/security/mkuser.sys.custom" file exists: # ls /etc/security/mkuser.sys.custom If the above command shows the file exists, this is a finding. |
| Fix Text (F-97413r1_fix) |
|---|
| Remove the "/etc/security/mkuser.sys.custom" file using the following command: # rm /etc/security/mkuser.sys.custom |