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ANSSI-BP-028 (intermediary)

Rules and Groups employed by this XCCDF Profile

  • Ensure All Files Are Owned by a Group

    If any file is not group-owned by a group present in /etc/group, the cause of the lack of group-ownership must be investigated. Following this, tho...
    Rule Medium Severity
  • Ensure All Files Are Owned by a User

    If any files are not owned by a user, then the cause of their lack of ownership should be investigated. Following this, the files should be deleted...
    Rule Medium Severity
  • Enable Kernel Parameter to Enforce DAC on Hardlinks

    To set the runtime status of the <code>fs.protected_hardlinks</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w fs.protecte...
    Rule Medium Severity
  • Enable Kernel Parameter to Enforce DAC on Symlinks

    To set the runtime status of the <code>fs.protected_symlinks</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w fs.protected...
    Rule Medium Severity
  • Verify Permissions on Files with Local Account Information and Credentials

    The default restrictive permissions for files which act as important security databases such as <code>passwd</code>, <code>shadow</code>, <code>gro...
    Group
  • Verify User Who Owns gshadow File

    To properly set the owner of /etc/gshadow, run the command:
    $ sudo chown root /etc/gshadow 
    Rule Medium Severity
  • Verify User Who Owns shadow File

    To properly set the owner of /etc/shadow, run the command:
    $ sudo chown root /etc/shadow 
    Rule Medium Severity
  • Verify Permissions on group File

    To properly set the permissions of /etc/group, run the command:
    $ sudo chmod 0644 /etc/group
    Rule Medium Severity
  • Verify Permissions on gshadow File

    To properly set the permissions of /etc/gshadow, run the command:
    $ sudo chmod 0000 /etc/gshadow
    Rule Medium Severity
  • Verify Permissions on passwd File

    To properly set the permissions of /etc/passwd, run the command:
    $ sudo chmod 0644 /etc/passwd
    Rule Medium Severity

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