The PWPHRASE GSO record must be properly defined.

From z/OS ACF2 STIG

Part of ACF0400

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

Associated with: CCI-000192 CCI-000193 CCI-000194 CCI-000195 CCI-000198 CCI-000199 CCI-000200 CCI-000205 CCI-001395 CCI-001619

SV-48576r3_rule The PWPHRASE GSO record must be properly defined.

Vulnerability discussion

Sites may opt to use passphrases in lieu of passwords for authentication. A passphrase must nevertheless be constrained by certain complexity parameters to assure appropriate strength. The GSO PWPHRASE record specifies the rules that ACF2 will apply when a user selects a new password phrase.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 one 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 a migration process or contingency plan activation.

Check content

Refer to the following report produced by the ACF2 Data Collection: - ACF2CMDS.RPT(ACFGSO) Automated Analysis Refer to the following report produced by the ACF2 Data Collection: - PDI(ACF0400) Note: Current DoD policy has changed requiring that the password change interval be at the most 60 days. Ensure that this is in effect. The GSO PWPHRASE record will conform to the following requirements. ALPHA(1 or greater) HISTORY(10-32) MAXDAYS(1-60) MINDAYS(1) MINLEN(15-100) NUMERIC(1 or greater) SPECIAL(1 or greater) SPECLIST() or SPECLIST(character list) WARNDAYS(1-10) Note: The SPECLIST special characters will be specified at a minimum. Characters will conform to the allowable list defined in CA ACF2 for z/OS Administration Guide.

Fix text

The IAO will ensure that the PWPHRASE GSO values are set to the values specified. Note: Current DoD policy has changed requiring that the password change interval be at the most 60 days. Ensure the GSO PWPHRASE record values conform to the following requirements. ALPHA(1 or greater) HISTORY(10-32) MAXDAYS(1-60) MINDAYS(1) MINLEN(15-100) NUMERIC(1 or greater) SPECIAL(1 or greater) SPECLIST() or SPECLIST(character list) WARNDAYS(1-10) Note: The SPECLIST special characters will be specified at a minimum. Characters will conform to the allowable list defined in CA ACF2 for z/OS Administration Guide. Example: SET C(GSO) INSERT PWPHRASE NOALLOW ALPHA(1) HISTORY(10) MAXDAYS(60) MINDAYS(1) MINLEN(15) NUMERIC(1) SPECIAL(1) SPECLIST(& * =) WARNDAYS(10) F ACF2,REFRESH(PWPHRASE)

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