{"description": "System-wide shared library files, which are linked to executables\nduring process load time or run time, are stored in the following directories\nby default:\n<pre>/lib\n/lib64\n/usr/lib\n/usr/lib64\n</pre>\nKernel modules, which can be added to the kernel during runtime, are also\nstored in <tt>/lib/modules</tt>. All files in these directories should be\nowned by the <tt>root</tt> user. If the directory, or any file in these\ndirectories, is found to be owned by a user other than root correct its\nownership with the following command:\n<pre>$ sudo chown root <i>FILE</i></pre>", "rationale": "Files from shared library directories are loaded into the address\nspace of processes (including privileged ones) or of the kernel itself at\nruntime. Proper ownership is necessary to protect the integrity of the system.", "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"], "ism": ["1409"], "stigid": ["UBTU-22-232070"], "stigref": ["SV-260499r991560_rule"]}, "control_references": {"ism": ["1409"], "stigid": ["UBTU-22-232070"]}, "components": [], "identifiers": {}, "ocil_clause": "any system wide shared library file is not owned by root", "ocil": "Verify the system-wide shared library files are owned by \"root\" with the following command:\n\n$ sudo find -L /lib /lib64 /usr/lib /usr/lib64 ! -user root -exec ls -l {} \\;", "oval_external_content": null, "fixtext": "Configure the system-wide shared library files (/lib, /lib64, /usr/lib and /usr/lib64) to be protected from unauthorized access.\n\nRun the following command, replacing \"[FILE]\" with any library file not owned by \"root\".\n\n$ sudo chown root [FILE]", "checktext": "", "vuldiscussion": "", "srg_requirement": "Ubuntu 22.04 library files must be owned by root.", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {"stig": {"srg_requirement": "Ubuntu 22.04 library files 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 systemwide shared library files are owned by \"root\" with the following command:\n\n$ sudo find -L /lib /lib64 /usr/lib /usr/lib64 ! -user root ! -type d -exec stat -L -c \"%U %n\" {} \\;\n\nIf any systemwide shared library file is not owned by root, this is a finding.", "fixtext": "Configure the systemwide shared library files (/lib, /lib64, /usr/lib and /usr/lib64) to be protected from unauthorized access.\n\nRun the following command, replacing \"[FILE]\" with any library 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 Shared Library Files Have Root Ownership", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/system/permissions/files/permissions_within_important_dirs/file_ownership_library_dirs/rule.yml", "template": {"name": "file_owner", "vars": {"filepath": ["/lib/", "/lib64/", "/usr/lib/", "/usr/lib64/"], "recursive": "true", "file_regex": "^.*$", "uid_or_name": "0"}, "backends": {}}}