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RHEL 8 must be configured to allow sending email notifications of unauthorized configuration changes to designated personnel.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-256974RHEL-08-010358SV-256974r1069321_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 IMO/ISSO and SAs must be notified via email and/or monitoring system trap when there is an unauthorized modification of a configuration item.
STIGDate
Red Hat Enterprise Linux 8 Security Technical Implementation Guide2026-02-05

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-256974r1069321_chk)

Verify that the operating system is configured to allow sending email notifications. Note: The "mailx" package provides the "mail" command that is used to send email messages. The s-nail package is also suitable and may be used in place of mailx. Verify that the "mailx" package is installed on the system: $ sudo yum list installed mailx mailx.x86_64 12.5-29.el8 @rhel-8-for-x86_64-baseos-rpm If "mailx" package is not installed, this is a finding.

Fix Text (F-60594r902754_fix)

Install the "mailx" package on the system: $ sudo yum install mailx