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The Oracle Linux operating system must not have a graphical display manager installed unless approved.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-221888 | OL07-00-040730 | SV-221888r505922_rule | Medium |
| Description |
|---|
| Internet services not required for system or application processes must not be active to decrease the attack surface of the system. Graphical display managers have a long history of security vulnerabilities and must not be used unless approved and documented. |
| STIG | Date |
|---|---|
| Oracle Linux 7 Security Technical Implementation Guide | 2020-09-10 |
Details
| Check Text ( C-23603r499630_chk ) |
|---|
| Verify the system is configured to boot to the command line: # systemctl get-default multi-user.target If the system default target is not set to "multi-user.target" and the Information System Security Officer (ISSO) lacks a documented requirement for a graphical user interface, this is a finding. Verify that a graphical user interface is not installed: # rpm -qa | grep xorg | grep server Ask the System Administrator if use of a graphical user interface is an operational requirement. If the use of a graphical user interface on the system is not documented with the ISSO, this is a finding. |
| Fix Text (F-23592r499631_fix) |
|---|
| Document the requirement for a graphical user interface with the ISSO or remove the related packages with the following commands: # rpm -e xorg-x11-server-common # systemctl set-default multi-user.target |