Check: ACF2-ES-000880
IBM z/OS ACF2 STIG:
ACF2-ES-000880
(in versions v9 r2 through v9 r1)
Title
ACF2 must use NIST FIPS-validated cryptography to protect passwords in the security database. (Cat I impact)
Discussion
Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. Satisfies: SRG-OS-000073-GPOS-00041, SRG-OS-000074-GPOS-00042
Check Content
From an ACF command screen enter: SET CONTROL(GSO) LIST PSWD If the "GSO PSWD" record option "PSWDENCT" is set to "XDES" or null, this is a finding. SET MSYSID(-) LIST PSWD For CA-ACF2 R16 and above: If option "NOONEPWALG" is specified, and there is no transition plan with a definite completion date filed with the information system security manager (ISSM), this is a finding.
Fix Text
Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the control option as specified below: Configure the "GSO PSWD" record option "PSWDENCT" to "AES1". For CA-ACF2 Release16 and above: Configure "GSO PSWD" record option "PSWDENCT" to "AES1" or "AES2". Configure the "GSO PSWD" to "ONEPWALG". Note: If you are using VM Database Synchronization you cannot use "ONEPWALG". VM does not support the AES algorithms. Develop a transition plan with a definite completion date for z/VM; file with the ISSM. If all systems that are sharing the logonid or infostorage databases are not running with the same "PSWDENCT" value you cannot use "ONEPWALG". Develop a transition plan that contains a definite completion date to migrate all logonid and infostorage databases to one "PSWDENCT" value; file with the ISSM. Consult the CA-ACF2 administration guide for converting to "AES1" or "AES2" and using "ONEPWALG".
Additional Identifiers
Rule ID: SV-223505r1001113_rule
Vulnerability ID: V-223505
Group Title: SRG-OS-000073-GPOS-00041
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000197 |
For password-based authentication, transmit passwords only over cryptographically-protected channels. |
CCI-004062 |
For password-based authentication, store passwords using an approved salted key derivation function, preferably using a keyed hash. |
Controls
Number | Title |
---|---|
IA-5(1) |
Password-based Authentication |