V-258110

Discussion

Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If RHEL 9 allows the user to select passwords based on dictionary words, this increases the chances of password compromise by increasing the opportunity for successful guesses, and brute-force attacks.

Check Content

Verify RHEL 9 prevents the use of dictionary words for passwords with the following command:

$ grep dictcheck /etc/security/pwquality.conf /etc/security/pwquality.conf.d/*.conf

/etc/security/pwquality.conf:dictcheck = 1

If "dictcheck" does not have a value other than "0", or is commented out, this is a finding.