Title

Ubuntu OS must have the "apparmor" package installed. (Cat II impact)

Discussion

Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). Satisfies: SRG-OS-000312-GPOS-00124, SRG-OS-000368-GPOS-00154, SRG-OS-000370-GPOS-00155

Check Content

Verify Ubuntu OS has the "apparmor" package installed by using the following command: $ dpkg -l | grep apparmor ii apparmor 3.0.4-2ubuntu2.3 amd64 user-space parser utility for AppArmor If the "apparmor" package is not installed, this is a finding.

Fix Text

Install the "appArmor" package by using the following command: $ sudo apt-get install apparmor

Additional Identifiers

Rule ID: SV-275645r1147985_rule

Vulnerability ID: V-275645

Group Title: SRG-OS-000312-GPOS-00124

Expert Comments

CCIs tied to check.

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