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CIS Ubuntu 22.04 Level 2 Workstation Benchmark

Rules and Groups employed by this XCCDF Profile

  • Ensure SSH MaxStartups is configured

    The MaxStartups parameter specifies the maximum number of concurrent unauthenticated connections to the SSH daemon. Additional connections will be dropped until authentication succeeds or the Login...
    Rule Medium Severity
  • Use Only Strong Ciphers

    Limit the ciphers to strong algorithms. Counter (CTR) mode is also preferred over cipher-block chaining (CBC) mode. The following line in <code>/etc/ssh/sshd_config</code> demonstrates use of those...
    Rule Medium Severity
  • Use Only Strong Key Exchange algorithms

    Limit the Key Exchange to strong algorithms. The following line in <code>/etc/ssh/sshd_config</code> demonstrates use of those: <pre>KexAlgorithms <xccdf-1.2:sub idref="xccdf_org.ssgproject.content...
    Rule Medium Severity
  • Use Only Strong MACs

    Limit the MACs to strong hash algorithms. The following line in <code>/etc/ssh/sshd_config</code> demonstrates use of those MACs: <pre>MACs <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_...
    Rule Medium Severity
  • Verify No .forward Files Exist

    The .forward file specifies an email address to forward the user's mail to.
    Rule Medium Severity
  • Install pam_pwquality Package

    The libpam-pwquality package can be installed with the following command:
    $ apt-get install libpam-pwquality
    Rule Medium Severity
  • Record Attempts to Alter Logon and Logout Events - faillock

    The audit system already collects login information for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during dae...
    Rule Medium Severity

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