STIGQter STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must not have unauthorized IP tunnels configured.

DISA Rule

SV-271863r1092639_rule

Vulnerability Number

V-271863

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL09-00-006010

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Remove all unapproved tunnels from the system, or document them with the ISSO.

Check Contents

Verify that OL 9 does not have unauthorized IP tunnels configured.

Determine if the IPsec service is active with the following command:

$ systemctl status ipsec
ipsec.service - Internet Key Exchange (IKE) Protocol Daemon for IPsec
Loaded: loaded (/usr/lib/systemd/system/ipsec.service; disabled)
Active: inactive (dead)

If the IPsec service is active, check for configured IPsec connections ("conn"), with the following command:

$ grep -rni conn /etc/ipsec.conf /etc/ipsec.d/

Verify any returned results are documented with the ISSO.

If the IPsec tunnels are active and not approved, this is a finding.

Vulnerability Number

V-271863

Documentable

False

Rule Version

OL09-00-006010

Severity Override Guidance

Verify that OL 9 does not have unauthorized IP tunnels configured.

Determine if the IPsec service is active with the following command:

$ systemctl status ipsec
ipsec.service - Internet Key Exchange (IKE) Protocol Daemon for IPsec
Loaded: loaded (/usr/lib/systemd/system/ipsec.service; disabled)
Active: inactive (dead)

If the IPsec service is active, check for configured IPsec connections ("conn"), with the following command:

$ grep -rni conn /etc/ipsec.conf /etc/ipsec.d/

Verify any returned results are documented with the ISSO.

If the IPsec tunnels are active and not approved, this is a finding.

Check Content Reference

M

Target Key

5680