OL 8 must enforce password complexity by requiring that at least one lowercase character be used.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-248688 | OL08-00-020120 | SV-248688r1015048_rule | CCI-004066 | low |
| 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. OL 8 uses pwquality as a mechanism to enforce password complexity. Note that in order to require lowercase characters without degrading the "minlen" value, the credit value must be expressed as a negative number in "/etc/security/pwquality.conf". | ||||
| STIG | Date | |||
| Oracle Linux 8 Security Technical Implementation Guide | 2025-05-13 | |||
Details
Check Text (C-248688r1015048_chk)
Verify the value for "lcredit" in "/etc/security/pwquality.conf" or "/etc/security/pwquality.conf.d/*.conf" files with the following command:
$ sudo grep -r lcredit /etc/security/pwquality.conf*
/etc/security/pwquality.conf:lcredit = -1
If the value of "lcredit" is a positive number or is commented out, this is a finding.
If conflicting results are returned, this is a finding.
Fix Text (F-52076r858632_fix)
Configure OL 8 to enforce password complexity by requiring that at least one lowercase character be used by setting the "lcredit" option.
Add or update the following line in the "/etc/security/pwquality.conf" file or a configuration file in the "/etc/security/pwquality.conf.d/" directory:
lcredit = -1
Remove any configurations that conflict with the above value.