<?xml version='1.0' encoding='utf-8'?>
<oval-def:oval_definitions xmlns:ind="http://oval.mitre.org/XMLSchema/oval-definitions-5#independent" xmlns:oval="http://oval.mitre.org/XMLSchema/oval-common-5" xmlns:oval-def="http://oval.mitre.org/XMLSchema/oval-definitions-5" xmlns:unix="http://oval.mitre.org/XMLSchema/oval-definitions-5#unix" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://oval.mitre.org/XMLSchema/oval-common-5 oval-common-schema.xsd  http://oval.mitre.org/XMLSchema/oval-definitions-5 oval-definitions-schema.xsd  http://oval.mitre.org/XMLSchema/oval-definitions-5#independent independent-definitions-schema.xsd  http://oval.mitre.org/XMLSchema/oval-definitions-5#unix unix-definitions-schema.xsd  http://oval.mitre.org/XMLSchema/oval-definitions-5#linux linux-definitions-schema.xsd">
  <oval-def:generator>
    <oval:product_name>OVALFileLinker from SCAP Security Guide</oval:product_name>
    <oval:product_version>ssg: [0, 1, 80], python: 3.10.12</oval:product_version>
    <oval:schema_version>5.11.2</oval:schema_version>
    <oval:timestamp>2026-01-21T21:18:20</oval:timestamp>
  </oval-def:generator>
  <oval-def:definitions>
    <oval-def:definition id="oval:ssg-file_permissions_var_log_audit:def:1" version="2" class="compliance">
      <oval-def:metadata>
        <oval-def:title>System Audit Logs Must Have Mode 0640 or Less Permissive</oval-def:title>
        <oval-def:affected family="unix">
          <oval-def:platform>Ubuntu 22.04</oval-def:platform>
        </oval-def:affected>
        <oval-def:reference ref_id="file_permissions_var_log_audit" source="ssg" />
        <oval-def:description>Checks for correct permissions for all audit log files.</oval-def:description>
      </oval-def:metadata>
      <oval-def:criteria operator="OR">
        <oval-def:criteria comment="log_file set" operator="AND">
          <oval-def:extend_definition negate="true" comment="log file set in auditd.conf" definition_ref="oval:ssg-auditd_conf_log_file_not_set:def:1" />
          <oval-def:criteria operator="OR">
            <oval-def:criteria comment="log_file set and log_group set to not root" operator="AND">
              <oval-def:extend_definition comment="log_group in auditd.conf is not set to root" definition_ref="oval:ssg-auditd_conf_log_group_not_root:def:1" />
              <oval-def:criterion negate="true" comment="non-default log_file and log_group set to non-root" test_ref="oval:ssg-test_file_permissions_audit_log-non_root:tst:1" />
            </oval-def:criteria>
            <oval-def:criteria comment="log_file set and log_group root or not set" operator="AND">
              <oval-def:extend_definition negate="true" comment="log_group in auditd.conf is set to root or not set" definition_ref="oval:ssg-auditd_conf_log_group_not_root:def:1" />
              <oval-def:criterion negate="true" comment="non-default log_file and log_group root or not set" test_ref="oval:ssg-test_file_permissions_audit_log:tst:1" />
            </oval-def:criteria>
          </oval-def:criteria>
        </oval-def:criteria>
        <oval-def:criteria comment="log_file not set" operator="AND">
          <oval-def:extend_definition comment="log file not set in auditd.conf" definition_ref="oval:ssg-auditd_conf_log_file_not_set:def:1" />
          <oval-def:criteria operator="OR">
            <oval-def:criteria comment="default log_file and log_group set to not root" operator="AND">
              <oval-def:extend_definition comment="log_group in auditd.conf is not set to root" definition_ref="oval:ssg-auditd_conf_log_group_not_root:def:1" />
              <oval-def:criterion negate="true" comment="default log_file and log_group set to non-root" test_ref="oval:ssg-test_file_permissions_var_log_audit-non_root:tst:1" />
            </oval-def:criteria>
            <oval-def:criteria comment="default log_file and log_group root or not set" operator="AND">
              <oval-def:extend_definition negate="true" comment="log_group in auditd.conf is set to root or not set" definition_ref="oval:ssg-auditd_conf_log_group_not_root:def:1" />
              <oval-def:criterion negate="true" comment="default log_file and log_group root or not set" test_ref="oval:ssg-test_file_permissions_var_log_audit:tst:1" />
            </oval-def:criteria>
          </oval-def:criteria>
        </oval-def:criteria>
      </oval-def:criteria>
    </oval-def:definition>
    <oval-def:definition id="oval:ssg-auditd_conf_log_file_not_set:def:1" version="1" class="compliance">
      <oval-def:metadata>
        <oval-def:title>'log_file' Not Set In /etc/audit/auditd.conf</oval-def:title>
        <oval-def:affected family="unix">
          <oval-def:platform>Ubuntu 22.04</oval-def:platform>
        </oval-def:affected>
        <oval-def:reference ref_id="auditd_conf_log_file_not_set" source="ssg" />
        <oval-def:description>Verify 'log_file' is not set in /etc/audit/auditd.conf.</oval-def:description>
      </oval-def:metadata>
      <oval-def:criteria operator="AND">
        <oval-def:criterion comment="Verify 'log_file' not set in /etc/audit/auditd.conf" test_ref="oval:ssg-test_auditd_conf_log_file_not_set:tst:1" />
      </oval-def:criteria>
    </oval-def:definition>
    <oval-def:definition id="oval:ssg-auditd_conf_log_group_not_root:def:1" version="1" class="compliance">
      <oval-def:metadata>
        <oval-def:title>'log_group' Not Set To 'root' In /etc/audit/auditd.conf</oval-def:title>
        <oval-def:affected family="unix">
          <oval-def:platform>Ubuntu 22.04</oval-def:platform>
        </oval-def:affected>
        <oval-def:reference ref_id="auditd_conf_log_group_not_root" source="ssg" />
        <oval-def:description>Verify 'log_group' is not set to 'root' in
      /etc/audit/auditd.conf.</oval-def:description>
      </oval-def:metadata>
      <oval-def:criteria operator="AND">
        <oval-def:criterion comment="Verify 'log_group' not set to 'root' in /etc/audit/auditd.conf" test_ref="oval:ssg-test_auditd_conf_log_group_not_root:tst:1" />
        <oval-def:criterion comment="Verify 'log_group' is set in /etc/audit/auditd.conf" test_ref="oval:ssg-test_auditd_conf_log_group_is_set:tst:1" />
      </oval-def:criteria>
    </oval-def:definition>
  </oval-def:definitions>
  <oval-def:tests>
    <unix:file_test id="oval:ssg-test_file_permissions_audit_log:tst:1" version="1" check="all" comment="audit log files mode 0600" state_operator="AND">
      <unix:object object_ref="oval:ssg-object_audit_log_files:obj:1" />
      <unix:state state_ref="oval:ssg-state_not_mode_0600:ste:1" />
    </unix:file_test>
    <unix:file_test id="oval:ssg-test_file_permissions_var_log_audit:tst:1" version="1" check="all" comment="/var/log/audit files mode 0600" state_operator="AND">
      <unix:object object_ref="oval:ssg-object_var_log_audit_files:obj:1" />
      <unix:state state_ref="oval:ssg-state_not_mode_0600:ste:1" />
    </unix:file_test>
    <unix:file_test id="oval:ssg-test_file_permissions_audit_log-non_root:tst:1" version="1" check="all" comment="audit log files mode 0640" state_operator="AND">
      <unix:object object_ref="oval:ssg-object_audit_log_files-non_root:obj:1" />
      <unix:state state_ref="oval:ssg-state_not_mode_0640:ste:1" />
    </unix:file_test>
    <unix:file_test id="oval:ssg-test_file_permissions_var_log_audit-non_root:tst:1" version="1" check="all" comment="/var/log/audit files mode 0640" state_operator="AND">
      <unix:object object_ref="oval:ssg-object_var_log_audit_files-non_root:obj:1" />
      <unix:state state_ref="oval:ssg-state_not_mode_0640:ste:1" />
    </unix:file_test>
    <ind:textfilecontent54_test id="oval:ssg-test_auditd_conf_log_file_not_set:tst:1" version="1" check="all" comment="log_file not set" check_existence="none_exist" state_operator="AND">
      <ind:object object_ref="oval:ssg-object_auditd_conf_log_file:obj:1" />
    </ind:textfilecontent54_test>
    <ind:textfilecontent54_test id="oval:ssg-test_auditd_conf_log_group_not_root:tst:1" version="1" check="all" comment="log_group = root" check_existence="none_exist" state_operator="AND">
      <ind:object object_ref="oval:ssg-object_auditd_conf_log_group_root:obj:1" />
    </ind:textfilecontent54_test>
    <ind:textfilecontent54_test id="oval:ssg-test_auditd_conf_log_group_is_set:tst:1" version="1" check="all" comment="log_group is set" check_existence="all_exist" state_operator="AND">
      <ind:object object_ref="oval:ssg-object_auditd_conf_log_group_is_set:obj:1" />
    </ind:textfilecontent54_test>
  </oval-def:tests>
  <oval-def:objects>
    <unix:file_object id="oval:ssg-object_audit_log_files:obj:1" version="1" comment="/var/log/audit files">
      <unix:filepath operation="pattern match" var_ref="oval:ssg-audit_log_file_path:var:1" />
      <oval-def:filter action="include">oval:ssg-state_not_mode_0600:ste:1</oval-def:filter>
    </unix:file_object>
    <unix:file_object id="oval:ssg-object_var_log_audit_files:obj:1" version="1" comment="/var/log/audit files">
      <unix:behaviors recurse="directories" recurse_direction="down" max_depth="-1" recurse_file_system="local" />
      <unix:path operation="equals">/var/log/audit</unix:path>
      <unix:filename operation="pattern match">^.*$</unix:filename>
      <oval-def:filter action="include">oval:ssg-state_not_mode_0600:ste:1</oval-def:filter>
    </unix:file_object>
    <unix:file_object id="oval:ssg-object_audit_log_files-non_root:obj:1" version="1" comment="audit log files">
      <unix:filepath operation="pattern match" var_ref="oval:ssg-audit_log_file_path:var:1" />
      <oval-def:filter action="include">oval:ssg-state_not_mode_0640:ste:1</oval-def:filter>
    </unix:file_object>
    <unix:file_object id="oval:ssg-object_var_log_audit_files-non_root:obj:1" version="1" comment="/var/log/audit files">
      <unix:behaviors recurse="directories" recurse_direction="down" max_depth="-1" recurse_file_system="local" />
      <unix:path operation="equals">/var/log/audit</unix:path>
      <unix:filename operation="pattern match">^.*$</unix:filename>
      <oval-def:filter action="include">oval:ssg-state_not_mode_0640:ste:1</oval-def:filter>
    </unix:file_object>
    <ind:textfilecontent54_object id="oval:ssg-object_auditd_conf_log_file:obj:1" version="1">
      <ind:filepath operation="equals">/etc/audit/auditd.conf</ind:filepath>
      <ind:pattern operation="pattern match">^(log_file\s*=\s*.*)$</ind:pattern>
      <ind:instance datatype="int">1</ind:instance>
    </ind:textfilecontent54_object>
    <ind:textfilecontent54_object id="oval:ssg-object_auditd_conf_log_group_root:obj:1" version="1" comment="log_group = root">
      <ind:filepath operation="equals">/etc/audit/auditd.conf</ind:filepath>
      <ind:pattern operation="pattern match">^[ ]*log_group[ ]+=[ ]+root[ ]*$</ind:pattern>
      <ind:instance datatype="int">1</ind:instance>
    </ind:textfilecontent54_object>
    <ind:textfilecontent54_object id="oval:ssg-object_auditd_conf_log_group_is_set:obj:1" version="1" comment="log_group is set">
      <ind:filepath operation="equals">/etc/audit/auditd.conf</ind:filepath>
      <ind:pattern operation="pattern match">^[ ]*log_group[ ]+=.*$</ind:pattern>
      <ind:instance datatype="int">1</ind:instance>
    </ind:textfilecontent54_object>
  </oval-def:objects>
  <oval-def:states>
    <unix:file_state id="oval:ssg-state_not_mode_0640:ste:1" version="1" operator="OR">
      <unix:suid datatype="boolean">true</unix:suid>
      <unix:sgid datatype="boolean">true</unix:sgid>
      <unix:sticky datatype="boolean">true</unix:sticky>
      <unix:uexec datatype="boolean">true</unix:uexec>
      <unix:gwrite datatype="boolean">true</unix:gwrite>
      <unix:gexec datatype="boolean">true</unix:gexec>
      <unix:oread datatype="boolean">true</unix:oread>
      <unix:owrite datatype="boolean">true</unix:owrite>
      <unix:oexec datatype="boolean">true</unix:oexec>
    </unix:file_state>
    <unix:file_state id="oval:ssg-state_not_mode_0600:ste:1" version="1" operator="OR">
      <unix:suid datatype="boolean">true</unix:suid>
      <unix:sgid datatype="boolean">true</unix:sgid>
      <unix:sticky datatype="boolean">true</unix:sticky>
      <unix:uexec datatype="boolean">true</unix:uexec>
      <unix:gread datatype="boolean">true</unix:gread>
      <unix:gwrite datatype="boolean">true</unix:gwrite>
      <unix:gexec datatype="boolean">true</unix:gexec>
      <unix:oread datatype="boolean">true</unix:oread>
      <unix:owrite datatype="boolean">true</unix:owrite>
      <unix:oexec datatype="boolean">true</unix:oexec>
    </unix:file_state>
  </oval-def:states>
  <oval-def:variables>
    <oval-def:local_variable id="oval:ssg-audit_log_file_path:var:1" version="1" datatype="string" comment="path to audit log files">
      <oval-def:regex_capture pattern="^log_file\s*=\s*(.*)">
        <oval-def:object_component item_field="subexpression" object_ref="oval:ssg-object_auditd_conf_log_file:obj:1" />
      </oval-def:regex_capture>
    </oval-def:local_variable>
  </oval-def:variables>
</oval-def:oval_definitions>