Finding ID | Version | Rule ID | IA Controls | Severity |
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V-22306 | GEN000750 | SV-44881r2_rule | Medium |
Description |
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To ensure password changes are effective in their goals, the system must ensure that old and new passwords have significant differences. Without significant changes, new passwords may be easily guessed based on the value of a previously compromised password. |
STIG | Date |
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SUSE Linux Enterprise Server v11 for System z | 2016-12-20 |
Check Text ( C-42335r3_chk ) |
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Check /etc/pam.d/common-{auth,account,password,session} for a ‘difok’ parameter on the pam_cracklib.so line. Procedure: # grep difok /etc/pam.d/common-{auth,account,password,session} If difok is not present, or has a value less than 8, this is a finding. Check for common-password inclusions. # grep -c common-password /etc/pam.d/* If the common-password file is included anywhere # grep difok /etc/pam.d/common-password If common-password is included anywhere and difok is not present, or has a value less than 8, this is a finding. Ensure the passwd command uses the common-password settings. # grep common-password /etc/pam.d/passwd If a line "password include common-password" is not found then the password checks in common-password will not be applied to new passwords and this is a finding. |
Fix Text (F-38313r3_fix) |
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Edit /etc/pam.d/common-password and add or edit a pam_cracklib.so entry with a difok parameter set equal to or greater than 8. |