The PWPHRASE GSO record must be properly defined.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-145	ACF0400	SV-48576r3_rule	DCCS-1 DCCS-2	Medium

Description
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.

Description

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.

STIG	Date
z/OS ACF2 STIG	2019-12-12

Details

Check Text ( C-39031r6_chk )
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.

Check Text ( C-39031r6_chk )

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 (F-64923r2_fix)
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)

Fix Text (F-64923r2_fix)

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)