Title

Amazon Linux 2023 must enable the SELinux targeted policy. (Cat II impact)

Discussion

Setting the SELinux policy to "targeted" or a more specialized policy ensures the system will confine processes that are likely to be targeted for exploitation, such as network or system services. Note: During the development or debugging of SELinux modules, it is common to temporarily place nonproduction systems in "permissive" mode. In such temporary cases, SELinux policies should be developed, and once work is completed, the system should be reconfigured to "targeted".

Check Content

Verify Amazon Linux 2023 SELINUX is using the targeted policy with the following command: $ sestatus | grep policy Loaded policy name: targeted If the loaded policy name is not "targeted", this is a finding.

Fix Text

Configure Amazon Linux 2023 to use the targeted SELINUX policy. Edit the file "/etc/selinux/config" and add or modify the following line: SELINUXTYPE=targeted A reboot is required for the changes to take effect.

Additional Identifiers

Rule ID: SV-274152r1120738_rule

Vulnerability ID: V-274152

Group Title: SRG-OS-000445-GPOS-00199

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.