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

From Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Associated with IA controls: ECSC-1

SV-26978r1_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.

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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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