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Disable the ssh_sysadm_login SELinux Boolean

An XCCDF Rule

Description

By default, the SELinux boolean ssh_sysadm_login is disabled. If this setting is enabled, it should be disabled. To disable the ssh_sysadm_login SELinux boolean, run the following command: 

$ sudo setsebool -P ssh_sysadm_login off

Rationale

Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals who do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users.

ID
xccdf_org.ssgproject.content_rule_sebool_ssh_sysadm_login
Severity
Medium
References
Updated



Remediation - Ansible

- name: Disable the ssh_sysadm_login SELinux Boolean - Ensure libsemanage-python Installed
  package:
    name: libsemanage-python
    state: present
  when: ansible_virtualization_type not in ["docker", "lxc", "openvz", "podman", "container"]
  tags:

Remediation - Shell Script

# Remediation is applicable only in certain platforms
if [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ]; then

if ! rpm -q --quiet "libsemanage-python" ; then
    yum install -y "libsemanage-python"
fi