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The Photon operating system must require that new passwords are at least four characters different from the old password.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-239096 | PHTN-67-000024 | SV-239096r675096_rule | Medium |
| 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. |
| STIG | Date |
|---|---|
| VMware vSphere 6.7 Photon OS Security Technical Implementation Guide | 2021-04-15 |
Details
| Check Text ( C-42307r675094_chk ) |
|---|
| At the command line, execute the following command: # grep pam_cracklib /etc/pam.d/system-password|grep --color=always "difok=." Expected result: password requisite pam_cracklib.so dcredit=-1 ucredit=-1 lcredit=-1 ocredit=-1 minlen=8 minclass=4 difok=4 retry=3 maxsequence=0 enforce_for_root If the output does not match the expected result, this is a finding. |
| Fix Text (F-42266r675095_fix) |
|---|
| Open /etc/pam.d/system-password with a text editor. Add the following, replacing any existing "pam_cracklib.so" line: password requisite pam_cracklib.so dcredit=-1 ucredit=-1 lcredit=-1 ocredit=-1 minlen=8 minclass=4 difok=4 retry=3 maxsequence=0 enforce_for_root |