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The CA-TSS NPPTHRESH Control Option must be properly set.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-223880 | TSS0-ES-000070 | SV-223880r958388_rule | Medium |
| Description |
|---|
| By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. |
| STIG | Date |
|---|---|
| IBM z/OS TSS Security Technical Implementation Guide | 2024-06-24 |
Details
| Check Text ( C-25553r516039_chk ) |
|---|
| From the ISPF Command Shell enter: TSS MODIFY STATUS If the PTHRESH Control Option value is not set to NPPTHRESH(02), this is a finding. |
| Fix Text (F-25541r516040_fix) |
|---|
| Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the control option setting as specified following and proceed with the change. NPPTHRESH(02) |