{"description": "\nTo properly set the owner of files in <code>/etc/ssh/sshd_config.d</code>, run the command:\n<pre>find -H /etc/ssh/sshd_config.d -type d -exec chown -L root {} \\;</pre>", "rationale": "Service configuration files enable or disable features of their respective\nservices that if configured incorrectly can lead to insecure and vulnerable\nconfigurations. Therefore, service configuration files should be owned by the\ncorrect group to prevent unauthorized changes.", "severity": "medium", "references": {"cis-csc": ["12", "13", "14", "15", "16", "18", "3", "5"], "cobit5": ["APO01.06", "DSS05.04", "DSS05.07", "DSS06.02"], "isa-62443-2009": ["4.3.3.7.3"], "isa-62443-2013": ["SR 2.1", "SR 5.2"], "iso27001-2013": ["A.10.1.1", "A.11.1.4", "A.11.1.5", "A.11.2.1", "A.13.1.1", "A.13.1.3", "A.13.2.1", "A.13.2.3", "A.13.2.4", "A.14.1.2", "A.14.1.3", "A.6.1.2", "A.7.1.1", "A.7.1.2", "A.7.3.1", "A.8.2.2", "A.8.2.3", "A.9.1.1", "A.9.1.2", "A.9.2.3", "A.9.4.1", "A.9.4.4", "A.9.4.5"], "nerc-cip": ["CIP-003-8 R5.1.1", "CIP-003-8 R5.3", "CIP-004-6 R2.3", "CIP-007-3 R2.1", "CIP-007-3 R2.2", "CIP-007-3 R2.3", "CIP-007-3 R5.1", "CIP-007-3 R5.1.1", "CIP-007-3 R5.1.2"], "nist": ["AC-17(a)", "CM-6(a)", "AC-6(1)"], "nist-csf": ["PR.AC-4", "PR.DS-5"], "srg": ["SRG-OS-000480-GPOS-00227"]}, "control_references": {}, "components": [], "identifiers": {}, "ocil_clause": "files in the /etc/ssh/sshd_config.d directory do not have a owner of root", "ocil": "To check the ownership of files in the <code>/etc/ssh/sshd_config.d</code> directory,\nrun the command:\n<pre>$ ls -lL /etc/ssh/sshd_config.d</pre>\nIf properly configured, the output should indicate the following owner:\n<code>root</code>", "oval_external_content": null, "fixtext": " Change the owner of the files in the /etc/ssh/sshd_config.d directory to root by running the following command:\n$ sudo chown -R root /etc/ssh/sshd_config.d", "checktext": "", "vuldiscussion": "", "srg_requirement": " The Ubuntu 22.04 files in /etc/ssh/sshd_config.d must be owned by root.", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {"stig": {"srg_requirement": "Ubuntu 22.04 SSH server configuration file must be owned by root.", "vuldiscussion": "Service configuration files enable or disable features of their respective services, which if configured incorrectly, can lead to insecure and vulnerable configurations. Therefore, service configuration files must be owned by the correct group to prevent unauthorized changes.", "checktext": "Verify the ownership of the \"/etc/ssh/sshd_config.d\" directory and files under it with the following command:\n\n$ ls -al /etc/ssh/sshd_config.d/*\n\nrw-------. 1 root root 3669 Feb 22 11:34 /etc/ssh/sshd_config\n\nIf the \"/etc/ssh/sshd_config\" file does not have a owner of \"root\", this is a finding.", "fixtext": "Configure the \"/etc/ssh/sshd_config\" file to be owned by root with the following command:\n\n$ sudo chgrp -R root /etc/ssh/sshd_config.d"}}, "platform": "system_with_kernel", "platforms": ["system_with_kernel"], "sce_metadata": {}, "inherited_platforms": [], "cpe_platform_names": ["system_with_kernel"], "inherited_cpe_platform_names": [], "bash_conditional": null, "fixes": {}, "title": "Verify Owner on SSH Server Configuration Files", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/services/ssh/file_owner_sshd_drop_in_config/rule.yml", "template": {"name": "file_owner", "vars": {"filepath": "/etc/ssh/sshd_config.d/", "file_regex": "^.*$", "uid_or_name": "0"}, "backends": {}}}