Set Password Creation Requirement Parameters Using pam_cracklib The pam_cracklib module checks the strength of passwords. It performs checks such as making sure a password is not a dictionary word, it is a certain length, contains a mix of characters (e.g. alphabet, numeric, other) and more. The following are definitions of the pam_cracklib.so options. * retry=3 - Allow 3 tries before sending back a failure. * minlen=14 - password must be 14 characters or more * dcredit=-1 - provide at least one digit * ucredit=-1 - provide at least one uppercase character * ocredit=-1 - provide at least one special character * lcredit=-1 - provide at least one lowercase character The setting shown above is one possible policy. Alter these values to conform to your own organization's password policies. [number digit char, number special char, number upper char, number lower char, 6 attempts, minimum length 6 or more] Strong passwords protect systems from being hacked through brute force methods. Fix: Set the pam_cracklib.so parameters as follows in /etc/pam.d/common-password: password required pam_cracklib.so retry=3 minlen=14 dcredit=-1 ucredit=-1 ocredit=-1 lcredit=-1 oval:org.secpod.oval:def:55097 SCAP Repo OVAL Definition 2019-06-19