Finding ID | Version | Rule ID | IA Controls | Severity |
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V-230362 | RHEL-08-020160 | SV-230362r627750_rule | Medium |
Description |
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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. RHEL 8 utilizes "pwquality" as a mechanism to enforce password complexity. The "minclass" option sets the minimum number of required classes of characters for the new password (digits, uppercase, lowercase, others). |
STIG | Date |
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Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2021-06-14 |
Check Text ( C-33031r567832_chk ) |
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Verify the value of the "minclass" option in "/etc/security/pwquality.conf" with the following command: $ sudo grep minclass /etc/security/pwquality.conf minclass = 4 If the value of "minclass" is set to less than "4" or is commented out, this is a finding. |
Fix Text (F-33006r567833_fix) |
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Configure the operating system to require the change of at least four character classes when passwords are changed by setting the "minclass" option. Add the following line to "/etc/security/pwquality.conf conf" (or modify the line to have the required value): minclass = 4 |