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The system must disable accounts after three consecutive unsuccessful login attempts.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-766 | GEN000460 | SV-38671r1_rule | ECLO-1 ECLO-2 | Medium |
| Description |
|---|
| Disabling accounts after a limited number of unsuccessful login attempts improves protection against password guessing attacks. |
| STIG | Date |
|---|---|
| Draft AIX Security Technical Implementation Guide | 2011-08-17 |
Details
| Check Text ( C-36678r1_chk ) |
|---|
| # /usr/sbin/lsuser -a loginretries ALL | more Check all active accounts on the system for the maximum number of tries before the system will lock the account. If a user has values set to 0 or greater then 3, this is a finding. |
| Fix Text (F-31633r1_fix) |
|---|
| Use the chsec command to configure the number of unsuccessful logins resulting in account lockout. #chsec –f /etc/security/user –s default –a loginretries=3 #chsec -f /etc/security/user -s |