The system must use a Linux Security Module configured to limit the privileges of system services.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000366

SV-63085r1_rule The system must use a Linux Security Module configured to limit the privileges of system services.

Vulnerability discussion

Linux Security Modules such as SELinux and AppArmor can be used to provide protection from software exploits by explicitly defining the privileges permitted to each software package.

Check content

Check if SELinux is enabled with at least a "targeted" policy. # grep ^SELINUX /etc/sysconfig/selinux If the SELINUX option is not set to "enforcing", this is a finding. If the SELINUXTYPE option is not set to "targeted" or "strict", this is a finding. If the use of the system is incompatible with the confines of SELinux this rule may be waived.

Fix text

Enable one of the SELinux policies. Edit /etc/sysconfig/selinux and set the value of the SELINUX option to "enforcing" and SELINUXTYPE to "targeted" or "strict". Restart the system.

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