STIGQter: STIG Summary: Red Hat Enterprise Linux 10 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

RHEL 10 must not allow a noncertificate trusted host Secure Shell (SSH) login to the system.

DISA Rule

SV-281266r1184766_rule

Vulnerability Number

V-281266

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

RHEL-10-700630

Severity

CAT II

CCI(s)

• CCI-000213 - Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Configure RHEL 10 to not allow a noncertificate trusted host SSH login to the system.

In "/etc/ssh/sshd_config.d", create a drop file that will lexicographically precede 50-redhat.conf and add the following line:

HostbasedAuthentication no

Restart the SSH daemon with the following command for the settings to take effect:

$ sudo systemctl restart sshd.service

Check Contents

Verify RHEL 10 does not allow a noncertificate trusted host SSH login to the system with the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*hostbasedauthentication'
/etc/ssh/sshd_config.d/10-stig.conf:HostbasedAuthentication no

Verify the runtime setting with the following command:

$ sudo sshd -T | grep -i hostbasedauthentication
hostbasedauthentication no

If the "HostbasedAuthentication" keyword is not set to "no" in a drop-in that lexicographically precedes 50-redhat.conf, or no output is returned, this is a finding.

Vulnerability Number

V-281266

Documentable

False

Rule Version

RHEL-10-700630

Severity Override Guidance

Verify RHEL 10 does not allow a noncertificate trusted host SSH login to the system with the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*hostbasedauthentication'
/etc/ssh/sshd_config.d/10-stig.conf:HostbasedAuthentication no

Verify the runtime setting with the following command:

$ sudo sshd -T | grep -i hostbasedauthentication
hostbasedauthentication no

If the "HostbasedAuthentication" keyword is not set to "no" in a drop-in that lexicographically precedes 50-redhat.conf, or no output is returned, this is a finding.

Check Content Reference

M

Target Key

5733