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Ubuntu OS must notify designated personnel if baseline configurations are changed in an unauthorized manner.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-275671RIIM-OS-651020SV-275671r1148063_ruleCCI-001744medium
Description
Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized access to the operating system. Changes to operating system 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 the operating system. The operating system's information management officer (IMO)/information system security officer (ISSO) and system administrators (SAs) must be notified via email and/or monitoring system trap when there is an unauthorized modification of a configuration item. Satisfies: SRG-OS-000363-GPOS-00150, SRG-OS-000447-GPOS-00201
STIGDate
Riverbed NetIM OS Security Technical Implementation Guide2025-10-02

Related Frameworks

1 mapping across 3 frameworks
SCF0 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.

CHG-02.4Automated Security Response
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 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.

AU-12Audit Record Generation
1.00
AU-3Content of Audit Records
1.00
AU-3(1)Additional Audit Information
1.00
AU-5(2)Real-time Alerts
1.00
AU-8Time Stamps
1.00
CM-3(5)Automated Security Response
1.00
CM-5(1)Automated Access Enforcement and Audit Records
1.00
SI-11Error Handling
1.00
SI-6Security and Privacy Function Verification
1.00
CCI1 mapping
CCI-001744
1.00

Details

Check Text (C-275671r1148063_chk)

Verify that Advanced Intrusion Detection Environment (AIDE) notifies the system administrator when anomalies in the operation of any security functions are discovered by using the following command: $ grep -i '^\s*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-79678r1148062_fix)

Configure AIDE to notify designated personnel if baseline configurations are changed in an unauthorized manner. The file integrity tool must notify the system administrator when changes to the baseline configuration or anomalies in the operation of any security functions are discovered. Add or modify the following line in the "/etc/default/aide" file: SILENTREPORTS=no