STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must implement DOD-approved encryption ciphers to protect the confidentiality of SSH connections.

DISA Rule

SV-283675r1193286_rule

Vulnerability Number

V-283675

Group Title

SRG-OS-000250-GPOS-00093

Rule Version

ALMA-09-003100

Severity

CAT I

CCI(s)

• CCI-001453 - Implement cryptographic mechanisms to protect the integrity of remote access sessions.

Weight

10

Fix Recommendation

Configure the AlmaLinux OS 9 SSH daemon to use systemwide crypto policies by running the following commands:

$ sudo dnf reinstall openssh-server

Check Contents

Verify that systemwide crypto policies are in effect with the following command:

$ sudo grep Include /etc/ssh/sshd_config /etc/ssh/sshd_config.d/*

/etc/ssh/sshd_config:Include /etc/ssh/sshd_config.d/*.conf
/etc/ssh/sshd_config.d/50-redhat.conf:Include /etc/crypto-policies/back-ends/opensshserver.config

If "Include /etc/ssh/sshd_config.d/*.conf" or "Include /etc/crypto-policies/back-ends/opensshserver.config" are not included in the system sshd config or the file "/etc/ssh/sshd_config.d/50-redhat.conf" is missing, this is a finding.

Vulnerability Number

V-283675

Documentable

False

Rule Version

ALMA-09-003100

Severity Override Guidance

Verify that systemwide crypto policies are in effect with the following command:

$ sudo grep Include /etc/ssh/sshd_config /etc/ssh/sshd_config.d/*

/etc/ssh/sshd_config:Include /etc/ssh/sshd_config.d/*.conf
/etc/ssh/sshd_config.d/50-redhat.conf:Include /etc/crypto-policies/back-ends/opensshserver.config

If "Include /etc/ssh/sshd_config.d/*.conf" or "Include /etc/crypto-policies/back-ends/opensshserver.config" are not included in the system sshd config or the file "/etc/ssh/sshd_config.d/50-redhat.conf" is missing, this is a finding.

Check Content Reference

M

Target Key

5664