STIGQter: STIG Summary: Red Hat Enterprise Linux 8 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

RHEL 8 must notify the System Administrator (SA) and Information System Security Officer (ISSO) (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity.

DISA Rule

SV-230483r627750_rule

Vulnerability Number

V-230483

Group Title

SRG-OS-000343-GPOS-00134

Rule Version

RHEL-08-030730

Severity

CAT II

CCI(s)

• CCI-001855 - The information system provides a warning to organization-defined personnel, roles, and/or locations within an organization-defined time period when allocated audit record storage volume reaches an organization-defined percentage of repository maximum audit record storage capacity.

Weight

10

Fix Recommendation

Configure the operating system to initiate an action to notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity by adding/modifying the following lines in the /etc/audit/auditd.conf file.

space_left = 25%
space_left_action = email

Note: Option names and values in the auditd.conf file are case insensitive.

Check Contents

Verify RHEL 8 notifies the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity with the following commands:

$ sudo grep space_left /etc/audit/auditd.conf

space_left = 25%
space_left_action = email

If the value of the "space_left" keyword is not set to "25%" and the "space_left_action" is not set to "email", or if these lines are commented out, ask the System Administrator to indicate how the system is providing real-time alerts to the SA and ISSO.

If there is no evidence that real-time alerts are configured on the system, this is a finding.

Vulnerability Number

V-230483

Documentable

False

Rule Version

RHEL-08-030730

Severity Override Guidance

Verify RHEL 8 notifies the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity with the following commands:

$ sudo grep space_left /etc/audit/auditd.conf

space_left = 25%
space_left_action = email

If the value of the "space_left" keyword is not set to "25%" and the "space_left_action" is not set to "email", or if these lines are commented out, ask the System Administrator to indicate how the system is providing real-time alerts to the SA and ISSO.

If there is no evidence that real-time alerts are configured on the system, this is a finding.

Check Content Reference

M

Target Key

2921

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