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1.162 ALMA-09-020920

Information

AlmaLinux OS 9 SSH private host key files must have mode 0640 or less permissive.

GROUP ID: V-269265
RULE ID: SV-269265r1050147

If an unauthorized user obtains the private SSH host key file, the host could be impersonated.

Solution

Configure the mode of SSH private host key files under "/etc/ssh" to "0640" with the following command:

$ chmod 0640 /etc/ssh/ssh_host*key

Restart the SSH daemon for the changes to take effect:

$ systemctl restart sshd.service

See Also

https://workbench.cisecurity.org/benchmarks/27039

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CCI|CCI-000366, Rule-ID|SV-269265r1050147_rule, STIG-ID|ALMA-09-020920, Vuln-ID|V-269265

Plugin: Unix

Control ID: 8086af582f42d14fc20b95dfdbc0cd8eb61ef0f8def66d90be3b2218905c7167