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Ubuntu 24.04 LTS must notify designated personnel if baseline configurations are changed in an unauthorized manner. The file integrity tool must notify the system administrator (SA) when changes to the baseline configuration or anomalies in the operation of any security functions are discovered.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-270652UBTU-24-100130SV-270652r1067138_ruleCCI-002702medium
Description
Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized access to Ubuntu 24.04 LTS. Changes to Ubuntu 24.04 LTS configurations can have unintended side effects, some of which may be relevant to security. Detecting such changes and providing an automated response can help avoid unintended, negative consequences that could ultimately affect the security state of Ubuntu 24.04 LTS. Ubuntu 24.04 LTS' IMO/information system security officer (ISSO) and SAs must be notified via email and/or monitoring system trap when there is an unauthorized modification of a configuration item. Satisfies: SRG-OS-000447-GPOS-00201, SRG-OS-000363-GPOS-00150
STIGDate
Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide2026-05-14

Related Frameworks

2 mappings across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) 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.

CHG-02.4Automated Security Response
1.00
CHG-06Control Functionality Verification
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (20) 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(4)Automated Audit Actions
1.00
AU-10(2)Validate Binding of Information Producer Identity
1.00
AU-12Audit Record Generation
1.00
AU-3Content of Audit Records
1.00
AU-3(1)Additional Audit Information
1.00
AU-4(1)Transfer to Alternate Storage
1.00
AU-5Response to Audit Logging Process Failures
1.00
AU-5(2)Real-time Alerts
1.00
AU-6(4)Central Review and Analysis
1.00
AU-7Audit Record Reduction and Report Generation
1.00

+10 more (top 10 by confidence shown)

CCI2 mappings
CCI-001744
1.00
CCI-002702
1.00

Details

Check Text (C-270652r1067138_chk)

Verify that Advanced Intrusion Detection Environment (AIDE) notifies the SA when anomalies in the operation of any security functions are discovered with the following command: $ grep SILENTREPORTS /etc/default/aide SILENTREPORTS=no If "SILENTREPORTS" is set to "yes", is commented out, or is missing, this is a finding.

Fix Text (F-74586r1067137_fix)

Configure Ubuntu 24.04 LTS to notify designated personnel if baseline configurations are changed in an unauthorized manner. Modify the "SILENTREPORTS" parameter in the "/etc/default/aide" file with a value of "no" if it does not already exist as follows: SILENTREPORTS=no