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Guide to the Secure Configuration of Oracle Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • faillock directory

    The directory where the user files with the failure records are kept
    Value
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  • fail_interval

    Interval for counting failed login attempts before account lockout
    Value
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  • fail_unlock_time

    Seconds before automatic unlocking or permanently locking after excessive failed logins
    Value
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  • tally2_unlock_time

    Seconds before automatic unlocking or permanently locking after excessive failed logins
    Value
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  • pwhistory_remember

    Prevent password re-use using password history lookup
    Value
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  • PAM pwhistory remember - control flag

    'Specify the control flag required for password remember requirement. If multiple values are allowed write them separated by commas as in "required,requisite", for remediations the first value will...
    Value
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  • tally2

    Number of failed login attempts
    Value
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  • Account Lockouts Must Be Logged

    PAM faillock locks an account due to excessive password failures, this event must be logged.
    Rule Medium Severity
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  • Account Lockouts Must Persist

    By setting a `dir` in the faillock configuration account lockouts will persist across reboots.
    Rule Medium Severity
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  • Configure the root Account for Failed Password Attempts

    This rule configures the system to lock out the <code>root</code> account after a number of incorrect login attempts using <code>pam_faillock.so</code>. pam_faillock.so module requires multiple en...
    Rule Medium Severity
    Show

  • Set Interval For Counting Failed Password Attempts

    Utilizing <code>pam_faillock.so</code>, the <code>fail_interval</code> directive configures the system to lock out an account after a number of incorrect login attempts within a specified time peri...
    Rule Medium Severity
    Show

  • Set Password Quality Requirements

    The default <code>pam_pwquality</code> PAM module provides strength checking for passwords. It performs a number of checks, such as making sure passwords are not similar to dictionary words, are of...
    Group
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  • Configure PAMs passwd Module To Implement system-auth Substack When Changing Passwords

    Verify that pam is configured to use <code>/etc/pam.d/system-auth</code> when changing passwords. Look for the following line in <code>/etc/pam.d/passwd</code>: <pre>password substack system-auth</...
    Rule Medium Severity
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  • Set Existing Passwords Minimum Age

    Configure non-compliant accounts to enforce a 24 hours/1 day minimum password lifetime by running the following command: 
    $ sudo chage -m 1 USER
    Rule Medium Severity
    Show

  • dcredit

    Minimum number of digits in password
    Value
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  • difok

    Minimum number of characters not present in old password
    Value
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  • lcredit

    Minimum number of lower case in password
    Value
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  • maxclassrepeat

    Maximum Number of Consecutive Repeating Characters in a Password From the Same Character Class
    Value
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  • maxrepeat

    Maximum Number of Consecutive Repeating Characters in a Password
    Value
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  • minclass

    Minimum number of categories of characters that must exist in a password
    Value
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