STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

RHEL 9 must encrypt the transfer of audit records offloaded onto a different system or media from the system being audited via rsyslog.

DISA Rule

SV-258147r1045290_rule

Vulnerability Number

V-258147

Group Title

SRG-OS-000342-GPOS-00133

Rule Version

RHEL-09-652045

Severity

CAT II

CCI(s)

• CCI-001851 - Transfer audit logs per organization-defined frequency to a different system, system component, or media than the system or system component conducting the logging.

Weight

10

Fix Recommendation

Configure RHEL 9 to encrypt offloaded audit records via rsyslog by setting the following options in "/etc/rsyslog.conf" or "/etc/rsyslog.d/[customfile].conf":

$ActionSendStreamDriverMode 1

Check Contents

Verify RHEL 9 encrypts audit records offloaded onto a different system or media from the system being audited via rsyslog with the following command:

$ grep -i 'StreamDriver[\.]*Mode' /etc/rsyslog.conf /etc/rsyslog.d/*.conf

/etc/rsyslog.conf:$ActionSendStreamDriverMode 1

If the value of the "$ActionSendStreamDriverMode or StreamDriver.Mode" option is not set to "1" or the line is commented out, this is a finding.

If the variable name "StreamDriverAuthMode" is present in an omfwd statement block, this is not a finding. However, if the "StreamDriverAuthMode" variable is in a module block, this is a finding.

Vulnerability Number

V-258147

Documentable

False

Rule Version

RHEL-09-652045

Severity Override Guidance

Verify RHEL 9 encrypts audit records offloaded onto a different system or media from the system being audited via rsyslog with the following command:

$ grep -i 'StreamDriver[\.]*Mode' /etc/rsyslog.conf /etc/rsyslog.d/*.conf

/etc/rsyslog.conf:$ActionSendStreamDriverMode 1

If the value of the "$ActionSendStreamDriverMode or StreamDriver.Mode" option is not set to "1" or the line is commented out, this is a finding.

If the variable name "StreamDriverAuthMode" is present in an omfwd statement block, this is not a finding. However, if the "StreamDriverAuthMode" variable is in a module block, this is a finding.

Check Content Reference

M

Target Key

5551