Check: TSS0-ES-000850
IBM z/OS TSS STIG:
TSS0-ES-000850
(in versions v9 r2 through v9 r1)
Title
CA-TSS ACID creation must use the EXP option. (Cat II impact)
Discussion
Without providing this capability, an account may be created without a password. Nonrepudiation cannot be guaranteed once an account is created if a user is not forced to change the temporary password upon initial logon. Temporary passwords are typically used to allow access when new accounts are created or passwords are changed. It is common practice for administrators to create temporary passwords for user accounts which allow the users to log on, yet force them to change the password once they have successfully authenticated.
Check Content
Ask the system administrator (SA) for the procedures for creating new ACIDs. If the procedure contains the "EXP" option, this is not a finding.
Fix Text
Ensure procedures to create New Acids include the "EXP" option. Example: TSS CREATE(USER02) NAME('ANDY POE') TYPE(USER) DEPARTMENT(PAYDEPT) PASSWORD(INITIAL,60,EXP) FACILITY(TSO)
Additional Identifiers
Rule ID: SV-223958r998498_rule
Vulnerability ID: V-223958
Group Title: SRG-OS-000380-GPOS-00165
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-002041 |
The information system allows the use of a temporary password for system logons with an immediate change to a permanent password. |
CCI-004063 |
For password-based authentication, require immediate selection of a new password upon account recovery. |
Controls
Number | Title |
---|---|
IA-5(1) |
Password-based Authentication |