Ubuntu 24.04 LTS must enforce password complexity by requiring that at least one lowercase character be used.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-270727 | SRG-OS-000070-GPOS-00038 | UBTU-24-400270 | SV-270727r1066670_rule | 2025-02-18 | 1 |
| 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. Satisfies: SRG-OS-000070-GPOS-00038, SRG-OS-000730-GPOS-00190 |
| ℹ️ Check |
|---|
| Verify Ubuntu 24.04 LTS enforces password complexity by requiring that at least one lowercase character be used with the following command: $ grep -i "lcredit" /etc/security/pwquality.conf lcredit=-1 If the "lcredit" parameter is greater than "-1", is commented out, or is missing, this is a finding. |
| ✔️ Fix |
|---|
| Configure Ubuntu 24.04 LTS to enforce password complexity by requiring that at least one lowercase character be used. Add or update the "/etc/security/pwquality.conf" file to contain the "lcredit" parameter: lcredit=-1 |