The PASSWORD(MINCHANGE) value will specified a value greater the zero (0).

Associated with IA controls: DCCS-1, DCCS-2

Associated with: CCI-000198

SV-263r2_rule The PASSWORD(MINCHANGE) value will specified a value greater the zero (0).

Vulnerability discussion

MINCHANGE specifies the number of days that must pass between a user’s password and password phrase changes. Users can not change their own passwords and password phrases within the minimum change interval.The system-wide options control the default settings for determining how the ACP will function when handling requests for access to the operating system environment, ACP, and customer data. The ACP provides the ability to set a number of these fields at the subsystem level. If no setting is found, the system-wide defaults will be used. The improper setting of any of these fields, individually or in combination with another, can compromise the security of the processing environment. In addition, failure to establish standardized settings for the ACP control options introduces the possibility of exposure during migration process or contingency plan activation.

Check content

Refer to the following report produced by the RACF Data Collection: - RACFCMDS.RPT(SETROPTS) Automated Analysis Refer to the following report produced by the RACF Data Collection: - PDI(RACF0445) If the PASSWORD(MINCHANGE) value shows "PASSWORD MINIMUM CHANGE INTERVAL IS DAYS." where is a number from 1 to 59, this is not a finding.

Fix text

The IAO will ensure that PASSWORD(MINCHANGE) SETROPTS value number from 1 to 59. This specifies the number of days that must pass before a user can change their password. Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the control option as specified in the example below: The RACF Command SETR LIST will show the status of RACF Controls including PASSWORD MINCHANGE. Use the following command as an example command: SETROPTS PASSWORD(MINCHANGE(1))

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