{"description": "System executables are stored in the following directories by default:\n<pre>/bin\n/sbin\n/usr/bin\n/usr/libexec\n/usr/local/bin\n/usr/local/sbin\n/usr/sbin</pre>\nAll files in these directories should be owned by the <tt>root</tt> user.\nIf any file <i>FILE</i> in these directories is found\nto be owned by a user other than root, correct its ownership with the\nfollowing command:\n<pre>$ sudo chown root <i>FILE</i></pre>", "rationale": "System binaries are executed by privileged users as well as system services,\nand restrictive permissions are necessary to ensure that their\nexecution of these programs cannot be co-opted.", "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": ["CM-5(6)", "CM-5(6).1", "CM-6(a)", "AC-6(1)"], "nist-csf": ["PR.AC-4", "PR.DS-5"], "srg": ["SRG-OS-000259-GPOS-00100"], "anssi": ["R50"], "ism": ["1409"], "stigid": ["UBTU-22-232050"], "stigref": ["SV-260495r991560_rule"]}, "control_references": {"anssi": ["R50"], "ism": ["1409"], "stigid": ["UBTU-22-232050"]}, "components": [], "identifiers": {}, "ocil_clause": "any system commands are found to not be owned by root", "ocil": "Verify the system commands contained in the following directories are owned by \"root\" with the following command:\n\n$ sudo find -L /bin /sbin /usr/bin /usr/sbin /usr/libexec /usr/local/bin /usr/local/sbin ! -user root -exec ls -l {} \\;", "oval_external_content": null, "fixtext": "Configure the system commands to be protected from unauthorized access.\n\nRun the following command, replacing \"[FILE]\" with any system command file not owned by \"root\".\n\n$ sudo chown root [FILE]", "checktext": "", "vuldiscussion": "", "srg_requirement": "Ubuntu 22.04 system commands must be owned by root.", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {"stig": {"srg_requirement": "Ubuntu 22.04 system commands must be owned by root.", "vuldiscussion": "If Ubuntu 22.04 allowed any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process.\n\nThis requirement applies to Ubuntu 22.04 with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs that execute with escalated privileges.", "checktext": "Verify the system commands contained in the following directories are owned by \"root\" with the following command:\n\n$ sudo find -L /bin /sbin /usr/bin /usr/sbin /usr/libexec /usr/local/bin /usr/local/sbin ! -user root -exec stat -L -c \"%U %n\" {} \\;\n\nIf any system commands are found to not be owned by root, this is a finding.", "fixtext": "Configure the system commands to be protected from unauthorized access.\n\nRun the following command, replacing \"[FILE]\" with any system command file not owned by \"root\".\n\n$ sudo chown root [FILE]"}}, "platform": null, "platforms": [], "sce_metadata": {}, "inherited_platforms": [], "cpe_platform_names": [], "inherited_cpe_platform_names": [], "bash_conditional": null, "fixes": {}, "title": "Verify that System Executables Have Root Ownership", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/system/permissions/files/permissions_within_important_dirs/file_ownership_binary_dirs/rule.yml", "template": null}