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CA-ACF2 must prevent the use of dictionary words for passwords.


Overview

Finding ID Version Rule ID IA Controls Severity
V-223477 ACF2-ES-000590 SV-223477r533198_rule Medium
Description
If the operating system allows the user to select passwords based on dictionary words, then this increases the chances of password compromise by increasing the opportunity for successful guesses and brute-force attacks.
STIG Date
IBM z/OS ACF2 Security Technical Implementation Guide 2022-06-22

Details

Check Text ( C-25150r500563_chk )
From the ISPF Command Shell enter:
ACF to enter ACF2 Command shell
enter SHOW STATE

If "PSWDRSV = NO", this is a finding.

If "PSWDRSVW = NO", this is a finding.

SHOW PSwdopts

Reserved Words and Prefixes
APPL APR ASDF AUG BASIC
CADAM DEC DEMO FEB FOCUS
GAME IBM JAN JUL JUN
LOG MAR MAY NET NEW
NOV OCT PASS ROS SEP
SIGN SYS TEST TSO VALID
VTAM XXX 1234
Fix Text (F-25138r500564_fix)
Configure the GSO record to include PSWDRSV and PSWDRSVW.