Check: TSS0-ES-000170
IBM z/OS TSS STIG:
TSS0-ES-000170
(in versions v9 r2 through v7 r1)
Title
The CA-TSS PWHIST Control Option must be set to 10 or greater. (Cat II impact)
Discussion
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements.
Check Content
From the ISPF Command Shell enter: TSS MODIFY STATUS If the PWHIST Control Option value is not set to PWHIST(10) or greater, this is a finding.
Fix Text
Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the following control option setting as specified and proceed with the change. PWHIST(10) or greater
Additional Identifiers
Rule ID: SV-223890r998491_rule
Vulnerability ID: V-223890
Group Title: SRG-OS-000077-GPOS-00045
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000200 |
The information system prohibits password reuse for the organization-defined number of generations. |
| CCI-004061 |
For password-based authentication, verify when users create or update passwords, that the passwords are not found on the list of commonly-used, expected, or compromised passwords in IA-5 (1) (a). |
Controls
| Number | Title |
|---|---|
| IA-5(1) |
Password-based Authentication |