CA 1 Tape Management function and password resources must be properly defined and protected.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-224454	ZCA1R021	SV-224454r804025_rule		Medium

Description
CA 1 Tape Management can run with sensitive system privileges, and potentially can circumvent system controls. Failure to properly control access to product resources could result in the compromise of the operating system environment, and compromise the confidentiality of customer data. Many utilities assign resource controls that can be granted to system programmers only in greater than read authority. Resources are also granted to certain non systems personnel with read only authority. CA 1 on-line applications offer the capabilities to directly access the CA 1 Tape Management Catalog (TMC) for query and update purposes. CA 1 special tape handling privileges offer the ability to process special tape requirements, such as BLP and foreign tapes. Uncontrolled access to these CA 1 features and facilities may threaten the integrity and availability of the CA 1 tape management system, and compromise the confidentiality of customer data.

Description

CA 1 Tape Management can run with sensitive system privileges, and potentially can circumvent system controls. Failure to properly control access to product resources could result in the compromise of the operating system environment, and compromise the confidentiality of customer data. Many utilities assign resource controls that can be granted to system programmers only in greater than read authority. Resources are also granted to certain non systems personnel with read only authority. CA 1 on-line applications offer the capabilities to directly access the CA 1 Tape Management Catalog (TMC) for query and update purposes. CA 1 special tape handling privileges offer the ability to process special tape requirements, such as BLP and foreign tapes. Uncontrolled access to these CA 1 features and facilities may threaten the integrity and availability of the CA 1 tape management system, and compromise the confidentiality of customer data.

STIG	Date
z/OS CA 1 Tape Management for RACF Security Technical Implementation Guide	2021-10-04

Details

Check Text ( C-26131r804023_chk )
Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(CA@APE) Refer to the following report produced by the z/OS Data Collection: - CA1RPT(TMSSECAB) - CA1RPT(TMSTMVT) – for r11.5 and below - CA1RPT(TMOOPTxx) – for r12.0 and above - CA1RPT(TMOSECxx) – for r12.6 and above Automated Analysis requiring additional analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZCA10021) Ensure that all CA 1 function and password resources are properly protected according to the requirements specified in the CA 1 Function and Password Resources table in the z/OS STIG Addendum. If the following guidance is true, this is not a finding. ___ The RACF resource access authorizations restrict access to the appropriate personnel as designated in the above table. ___ The RACF resource logging is specified as designated in the above table. ___ The RACF resource rules for the resources designated in the above table specify UACC(NONE) and NOWARNING. __ A Deny-By-Default entry of “**” is defined with UACC(NONE) and no Access Granted. Note: CA 1 password resources may require additional analysis to ensure access authorization is justified. CA 1 system password is obtained at offset x'18' from the beginning of module TMSTMVT for r11.5 and below and SHUTDWN option specified in the TMOOPTxx for r12.0 and above. CA 1 Online User Passwords can be obtained from TMSSECAB for all releases or TMOSECxx, if present, for r12.6 and above.

Check Text ( C-26131r804023_chk )

Refer to the following report produced by the Data Set and Resource Data Collection:

- SENSITVE.RPT(CA@APE)

Refer to the following report produced by the z/OS Data Collection:

- CA1RPT(TMSSECAB)
- CA1RPT(TMSTMVT) – for r11.5 and below
- CA1RPT(TMOOPTxx) – for r12.0 and above
- CA1RPT(TMOSECxx) – for r12.6 and above

Automated Analysis requiring additional analysis
Refer to the following report produced by the Data Set and Resource Data Collection:

- PDI(ZCA10021)

Ensure that all CA 1 function and password resources are properly protected according to the requirements specified in the CA 1 Function and Password Resources table in the z/OS STIG Addendum. If the following guidance is true, this is not a finding.

___ The RACF resource access authorizations restrict access to the appropriate personnel as designated in the above table.

___ The RACF resource logging is specified as designated in the above table.

___ The RACF resource rules for the resources designated in the above table specify UACC(NONE) and NOWARNING.

__ A Deny-By-Default entry of “**” is defined with UACC(NONE) and no Access Granted.

Note: CA 1 password resources may require additional analysis to ensure access authorization is justified. CA 1 system password is obtained at offset x'18' from the beginning of module TMSTMVT for r11.5 and below and SHUTDWN option specified in the TMOOPTxx for r12.0 and above. CA 1 Online User Passwords can be obtained from TMSSECAB for all releases or TMOSECxx, if present, for r12.6 and above.

Fix Text (F-26119r804024_fix)
Ensure that the CA 1 function and password resource access is in accordance with those outlined in CA 1 Function and Password Resources table in the zOS STIG Addendum. Use CA 1 Function and Password Resources and CA 1 Function and Password Resources for RACF tables in the zOS STIG Addendum. These tables list the resources, access requirements, and the resource class for CA 1 Function and Password Resources; ensure the following guidelines are followed: The RACF resource access authorizations restrict access to the appropriate personnel as designated in the above table. The RACF resource logging is specified as designated in the above table. The RACF resource rules for the resources designated in the above table specify UACC(NONE) and NOWARNING. A Deny-By-Default entry of “**” is defined with UACC(NONE) and no Access Granted. The following commands are provided as a sample for implementing resource controls: RDEFINE CA@APE BLPRES UACC(NONE) OWNER(ADMIN) AUDIT(ALL(READ)) PERMIT BLPRES CLASS(CA@APE) ACCESS(UPDATE) ID(tapeaudt) PERMIT BLPRES CLASS(CA@APE) ACCESS(UPDATE) ID(syspaudt)

Fix Text (F-26119r804024_fix)

Ensure that the CA 1 function and password resource access is in accordance with those outlined in CA 1 Function and Password Resources table in the zOS STIG Addendum.

Use CA 1 Function and Password Resources and CA 1 Function and Password Resources for RACF tables in the zOS STIG Addendum. These tables list the resources, access requirements, and the resource class for CA 1 Function and Password Resources; ensure the following guidelines are followed:

The RACF resource access authorizations restrict access to the appropriate personnel as designated in the above table.

The RACF resource logging is specified as designated in the above table.

The RACF resource rules for the resources designated in the above table specify UACC(NONE) and NOWARNING.

A Deny-By-Default entry of “**” is defined with UACC(NONE) and no Access Granted.

The following commands are provided as a sample for implementing resource controls:

RDEFINE CA@APE BLPRES UACC(NONE) OWNER(ADMIN) AUDIT(ALL(READ))
PERMIT BLPRES CLASS(CA@APE) ACCESS(UPDATE) ID(tapeaudt)
PERMIT BLPRES CLASS(CA@APE) ACCESS(UPDATE) ID(syspaudt)