{"description": "\nTo properly set the group owner of <code>/etc/ssh/sshd_config</code>, run the command:\n\n  <pre>$ sudo chgrp root /etc/ssh/sshd_config</pre>\n  ", "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"], "anssi": ["R50"], "cis": ["5.1.1"]}, "control_references": {"anssi": ["R50"], "cis": ["5.1.1"]}, "components": [], "identifiers": {}, "ocil_clause": "/etc/ssh/sshd_config does not have a group owner of\nroot\n", "ocil": "To check the group ownership of <code>/etc/ssh/sshd_config</code>,\nrun the command:\n<pre>$ ls -lL /etc/ssh/sshd_config</pre>\nIf properly configured, the output should indicate the following group-owner:\n\n  <code>root</code>\n  ", "oval_external_content": null, "fixtext": " Change the group of the file /etc/ssh/sshd_config to root by running the following command:\n$ sudo chgrp root /etc/ssh/sshd_config", "checktext": "", "vuldiscussion": "", "srg_requirement": " The Ubuntu 22.04 /etc/ssh/sshd_config file must be group-owned by root.", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {"stig": {"srg_requirement": "Ubuntu 22.04 SSH server configuration file must be group-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 group ownership of the \"/etc/ssh/sshd_config\" file and the contents of \"/etc/ssh/sshd_config.d\" with the following command:\n\n$ sudo find /etc/ssh/sshd_config /etc/ssh/sshd_config.d -exec stat -c \"%G %n\" {} \\;\n\nroot /etc/ssh/sshd_config\nroot /etc/ssh/sshd_config.d\nroot /etc/ssh/sshd_config.d/50-cloud-init.conf\nroot /etc/ssh/sshd_config.d/50-redhat.conf\n\nIf the \"/etc/ssh/sshd_config\" file or \"/etc/ssh/sshd_config.d\" or any files in the sshd_config.d directory do not have a group owner of \"root\", this is a finding.", "fixtext": "Configure the \"/etc/ssh/sshd_config\" file and the contents of \"/etc/ssh/sshd_config.d\" to be group-owned by root with the following command:\n\n$ sudo chgrp root /etc/ssh/sshd_config /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 Group Who Owns SSH Server config file", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/services/ssh/file_groupowner_sshd_config/rule.yml", "template": {"name": "file_groupowner", "vars": {"filepath": "/etc/ssh/sshd_config", "gid_or_name": "0"}, "backends": {}}}