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Guide to the Secure Configuration of Red Hat Enterprise Linux 9

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Verify Integrity with AIDE

    AIDE conducts integrity checks by comparing information about files with previously-gathered information. Ideally, the AIDE database is created imm...
    Group
  • Install AIDE

    The aide package can be installed with the following command:
    $ sudo dnf install aide
    Rule Medium Severity
  • Build and Test AIDE Database

    Run the following command to generate a new database: <pre>$ sudo /usr/sbin/aide --init</pre> By default, the database will be written to the fil...
    Rule Medium Severity
  • Configure AIDE to Verify the Audit Tools

    The operating system file integrity tool must be configured to protect the integrity of the audit tools.
    Rule Medium Severity
  • Configure Periodic Execution of AIDE

    At a minimum, AIDE should be configured to run a weekly scan. To implement a daily execution of AIDE at 4:05am using cron, add the following line t...
    Rule Medium Severity
  • Configure Notification of Post-AIDE Scan Details

    AIDE should notify appropriate personnel of the details of a scan after the scan has been run. If AIDE has already been configured for periodic exe...
    Rule Medium Severity
  • Configure AIDE to Use FIPS 140-2 for Validating Hashes

    By default, the <code>sha512</code> option is added to the <code>NORMAL</code> ruleset in AIDE. If using a custom ruleset or the <code>sha512</code...
    Rule Medium Severity
  • Configure AIDE to Verify Access Control Lists (ACLs)

    By default, the <code>acl</code> option is added to the <code>FIPSR</code> ruleset in AIDE. If using a custom ruleset or the <code>acl</code> optio...
    Rule Low Severity
  • Configure AIDE to Verify Extended Attributes

    By default, the <code>xattrs</code> option is added to the <code>FIPSR</code> ruleset in AIDE. If using a custom ruleset or the <code>xattrs</code>...
    Rule Low Severity
  • Audit Tools Must Be Group-owned by Root

    Red Hat Enterprise Linux 9 systems providing tools to interface with audit information will leverage user permissions and roles identifying the use...
    Rule Medium Severity

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