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The Ubuntu operating system must be configured to use AppArmor.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-238360UBTU-20-010439SV-238360r958804_ruleCCI-001764medium
Description
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-000368-GPOS-00154, SRG-OS-000312-GPOS-00122, SRG-OS-000312-GPOS-00123, SRG-OS-000312-GPOS-00124, SRG-OS-000324-GPOS-00125, SRG-OS-000370-GPOS-00155
STIGDate
Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide2025-05-16

Related Frameworks

4 mappings across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (9) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-01Configuration Management Program
1.00
CFG-02Secure Baseline Configurations
1.00
CFG-03Least Functionality
1.00
CFG-03.2Prevent Unauthorized Software Execution
1.00
CFG-03.3Explicitly Allow / Deny Applications
1.00
CFG-05User-Installed Software
1.00
END-03Prohibit Installation Without Privileged Status
1.00
IAC-21.5Prohibit Non-Privileged Users from Executing Privileged Functions
1.00
SEA-06Prevent Program Execution
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (63) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-3(13)Attribute-based Access Control
1.00
AC-3(4)Discretionary Access Control
1.00
AC-3(7)Role-based Access Control
1.00
AC-4Information Flow Enforcement
1.00

+53 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.1.7
1.00
3.4.7
1.00
3.4.8
1.00
CCI4 mappings
CCI-001764
1.00
CCI-001774
1.00
CCI-002165
1.00
CCI-002235
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.PS-05
1.00

Who does this work

8 NICE work roles and 8 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-238360r958804_chk)

Verify the operating system prevents program execution in accordance with local policies. Check that AppArmor is installed and active by running the following command, $ dpkg -l | grep apparmor If the "apparmor" package is not installed, this is a finding. $ systemctl is-active apparmor.service active If "active" is not returned, this is a finding. $ systemctl is-enabled apparmor.service enabled If "enabled" is not returned, this is a finding.

Fix Text (F-41529r654254_fix)

Install "AppArmor" (if it is not installed) with the following command: $ sudo apt-get install apparmor $ sudo systemctl enable apparmor.service Start "apparmor" with the following command: $ sudo systemctl start apparmor.service Note: AppArmor must have properly configured profiles for applications and home directories. All configurations will be based on the actual system setup and organization and normally are on a per role basis. See the AppArmor documentation for more information on configuring profiles.