UBTU-20-010051 - The Ubuntu operating system must enforce password complexity by requiring that at least one lower-case character be used.

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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.

Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.


Add or update the '/etc/security/pwquality.conf' file to contain the 'lcredit' parameter:


See Also


Item Details

References: CAT|III, CCI|CCI-000193, Rule-ID|SV-238222r653841_rule, STIG-ID|UBTU-20-010051, Vuln-ID|V-238222

Plugin: Unix

Control ID: feabbf71ff7f82a95c9be804b10cc1b09ff3a4e05ad391ddcc468f0f40e6587a