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Guide to the Secure Configuration of Ubuntu 20.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Record Events When Privileged Executables Are Run

    Verify the system generates an audit record when privileged functions are executed. If audit is using the "auditctl" tool to load the rules, run the following command: <pre>$ sudo grep execve /et...
    Rule Medium Severity
  • Record Events that Modify User/Group Information - /etc/security/opasswd

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default), add the following lines to a file with suffix <co...
    Rule Medium Severity
  • Record Attempts to perform maintenance activities

    The Ubuntu 20.04 operating system must generate audit records for privileged activities, nonlocal maintenance, diagnostic sessions and other system-level access. Verify the operating system audits...
    Rule Medium Severity
  • System Audit Logs Must Be Owned By Root

    All audit logs must be owned by root user and group. By default, the path for audit log is <pre>/var/log/audit/</pre>. To properly set the owner of <code>/var/log/audit</code>, run the command: <p...
    Rule Medium Severity
  • System Audit Logs Must Be Owned By Root

    All audit logs must be owned by root user. The path for audit log can be configured via <code>log_file</code> parameter in <pre>/etc/audit/auditd.conf</pre> or by default, the path for audit log is...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls

    At a minimum, the audit system should collect file permission changes for all users and root. Note that the "-F arch=b32" lines should be present even on a 64 bit system. These commands identify sy...
    Group
  • Record Events that Modify the System's Discretionary Access Controls - chmod

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audi...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - fchownat

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audi...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - lsetxattr

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audi...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - setxattr

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audi...
    Rule Medium Severity

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