Ubuntu 22.04 LTS must enforce password complexity by requiring at least one lowercase character be used.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-260561 | SRG-OS-000070-GPOS-00038 | UBTU-22-611015 | SV-260561r1015013_rule | 2025-03-03 | 2 |
| Description |
|---|
| 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. |
| ℹ️ Check |
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| Verify Ubuntu 22.04 LTS 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. |
| ✔️ Fix |
|---|
| Configure Ubuntu 22.04 LTS to enforce password complexity by requiring that at least one lowercase character be used. Add or modify the following line in the "/etc/security/pwquality.conf" file: lcredit = -1 |