V-230356

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. "pwquality" enforces complex password construction configuration and has the ability to limit brute-force attacks on the system. RHEL 8 utilizes "pwquality" as a mechanism to enforce password complexity. This is set in both: /etc/pam.d/password-auth /etc/pam.d/system-auth

Check Content

Verify the operating system uses "pwquality" to enforce the password complexity rules. 

Check for the use of "pwquality" in the password-auth file with the following command:

     $ sudo cat /etc/pam.d/password-auth | grep pam_pwquality

     password requisite pam_pwquality.so 

If the command does not return a line containing the value "pam_pwquality.so" as shown, or the line is commented out, this is a finding.