V-275650

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. 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.

Check Content

Verify Ubuntu OS enforces password complexity by requiring that at least one lowercase character be used by using the following command:  
  
     $ grep -i lcredit /etc/security/pwquality.conf 
     lcredit = -1  
  
If "lcredit" is greater than "-1", is commented out, or is missing, this is a finding.