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CIS Ubuntu 20.04 Level 2 Server Benchmark

Rules and Groups employed by this XCCDF Profile

  • Remove ufw Package

    The ufw package can be removed with the following command:
    $ apt-get remove ufw
    Rule Medium Severity
  • Verify ufw Enabled

    The ufw service can be enabled with the following command:
    $ sudo systemctl enable ufw.service
    Rule Medium Severity
  • Ensure ufw Default Deny Firewall Policy

    A default deny policy on connections ensures that any unconfigured network usage will be rejected. Note: Any port or protocol without a explicit a...
    Rule Medium Severity
  • Set UFW Loopback Traffic

    Configure the loopback interface to accept traffic. Configure all other interfaces to deny traffic to the loopback network.
    Rule Medium Severity
  • Uncommon Network Protocols

    The system includes support for several network protocols which are not commonly used. Although security vulnerabilities in kernel networking code ...
    Group

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