STIGQter STIGQter: STIG Summary: SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 01 Apr 2026:

SLEM 5 SSH daemon private host key files must have mode 640 or less permissive.

DISA Rule

SV-261294r996359_rule

Vulnerability Number

V-261294

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

SLEM-05-232045

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the mode of SLEM 5 SSH daemon private host key files under "/etc/ssh" to "640" with the following command:

> sudo chmod 640 /etc/ssh/ssh_host*key

Check Contents

Verify SLEM 5 SSH daemon private host key files have mode "640" or less permissive.

The following command will find all SSH private key files on the system with the following command:

> sudo find / -name '*ssh_host*key' -exec ls -lL {} \;

Check the mode of the private host key files under "/etc/ssh" file with the following command:

> find /etc/ssh -name 'ssh_host*key' -exec stat -c "%a %n" {} \;

640 /etc/ssh/ssh_host_rsa_key
640 /etc/ssh/ssh_host_dsa_key
640 /etc/ssh/ssh_host_ecdsa_key
640 /etc/ssh/ssh_host_ed25519_key

If any file has a mode more permissive than "640", this is a finding.

Vulnerability Number

V-261294

Documentable

False

Rule Version

SLEM-05-232045

Severity Override Guidance

Verify SLEM 5 SSH daemon private host key files have mode "640" or less permissive.

The following command will find all SSH private key files on the system with the following command:

> sudo find / -name '*ssh_host*key' -exec ls -lL {} \;

Check the mode of the private host key files under "/etc/ssh" file with the following command:

> find /etc/ssh -name 'ssh_host*key' -exec stat -c "%a %n" {} \;

640 /etc/ssh/ssh_host_rsa_key
640 /etc/ssh/ssh_host_dsa_key
640 /etc/ssh/ssh_host_ecdsa_key
640 /etc/ssh/ssh_host_ed25519_key

If any file has a mode more permissive than "640", this is a finding.

Check Content Reference

M

Target Key

5596