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Guide to the Secure Configuration of SUSE Linux Enterprise 15

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Ensure there are no legacy + NIS entries in /etc/group

    The + character in /etc/group file marks a place where entries from a network information service (NIS) should be directly inserted.
    Rule Medium Severity
  • Ensure there are no legacy + NIS entries in /etc/passwd

    The + character in /etc/passwd file marks a place where entries from a network information service (NIS) should be directly inserted.
    Rule Medium Severity
  • Ensure there are no legacy + NIS entries in /etc/shadow

    The + character in /etc/shadow file marks a place where entries from a network information service (NIS) should be directly inserted.
    Rule Medium Severity
  • Verify No netrc Files Exist

    The <code>.netrc</code> files contain login information used to auto-login into FTP servers and reside in the user's home directory. These files may contain unencrypted passwords to remote FTP serv...
    Rule Medium Severity
  • Restrict Root Logins

    Direct root logins should be allowed only for emergency use. In normal situations, the administrator should access the system via a unique unprivileged account, and then use <code>su</code> or <cod...
    Group
  • Group Name Used by pam_wheel Group Parameter

    pam_wheel module has a parameter called group, which controls which groups can access the su command. This variable holds the valid value for the parameter.
    Value
  • Verify Only Root Has UID 0

    If any account other than root has a UID of 0, this misconfiguration should be investigated and the accounts other than root should be removed or have their UID changed. <br> If the account is asso...
    Rule High Severity
  • Verify Root Has A Primary GID 0

    The root user should have a primary group of 0.
    Rule High Severity
  • Restrict Serial Port Root Logins

    To restrict root logins on serial ports, ensure lines of this form do not appear in /etc/securetty:
    ttyS0
    ttyS1
    Rule Medium Severity
  • Restrict Virtual Console Root Logins

    To restrict root logins through the (deprecated) virtual console devices, ensure lines of this form do not appear in /etc/securetty:
    vc/1
    vc/2
    vc/3
    vc/4
    Rule Medium Severity

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