Detections
Analytics

1.158 AZLX-23-002440

Information

Amazon Linux 2023 must restrict the use of the "su" command.

GROUP ID: V-274151RULE ID: SV-274151r1120441

The "su" program allows to run commands with a substitute user and group ID. It is commonly used to run commands as the root user. Limiting access to such commands is considered a good security practice.

Solution

Configure Amazon Linux 2023 to require users to be in the "wheel" group to run "su" command.

In file "/etc/pam.d/su", uncomment the following line:

"#auth required pam_wheel.so use_uid" $ sudo sed '/^[[:space:]]*#[[:space:]]*auth[[:space:]]\+required[[:space:]]\+pam_wheel\.so[[:space:]]\+use_uid$/s/^[[:space:]]*#//' -i /etc/pam.d/su

If necessary, create a "wheel" group and add administrative users to the group.

See Also

https://workbench.cisecurity.org/benchmarks/26107

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-3(4), CAT|II, CCI|CCI-002165, Rule-ID|SV-274151r1120441_rule, STIG-ID|AZLX-23-002440, Vuln-ID|V-274151

Plugin: Unix

Control ID: f4707cb8c5553e0289281f16a51368765005dde0f5f38ccab109c20c7363e1b6