CA 1 Tape Management installation data sets must be properly protected.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-16932	ZCA1A000	SV-39947r2_rule		Medium

Description
CA 1 Tape Management installation data sets have the ability to use privileged functions and/or have access to sensitive data. Failure to properly restrict access to these data sets could result in violating the integrity of the base product which could result in compromising the operating system or sensitive data.

STIG	Date
z/OS CA 1 Tape Management for ACF2 STIG	2019-09-26

Details

Check Text ( C-17257r2_chk )
Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(CA1PROD) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZCA10000) Verify that the accesses to the CA 1 Tape Management installation data sets are properly restricted. If the following guidance is true, this is not a finding. ___ The ACF2 data set rules for the data sets restricts READ access to all authorized users. ___ The ACF2 data set rules for the data sets restricts WRITE and/or greater access to systems programming personnel. ___ The ACF2 data set rules for the data sets specify that all (i.e., failures and successes) WRITE and/or greater access is logged.

Check Text ( C-17257r2_chk )

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

- SENSITVE.RPT(CA1PROD)

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

- PDI(ZCA10000)

Verify that the accesses to the CA 1 Tape Management installation data sets are properly restricted. If the following guidance is true, this is not a finding.

___ The ACF2 data set rules for the data sets restricts READ access to all authorized users.

___ The ACF2 data set rules for the data sets restricts WRITE and/or greater access to systems programming personnel.

___ The ACF2 data set rules for the data sets specify that all (i.e., failures and successes) WRITE and/or greater access is logged.

Fix Text (F-15790r3_fix)
Ensure that WRITE and/or greater access to CA 1 Tape Management installation data sets is limited to System Programmers only, and all WRITE and/or greater access is logged. READ access can be given to all authorized users. The installing Systems Programmer will identify and document the product data sets and categorize them according to who will have WRITE and/or greater access and if required that all WRITE and/or greater access is logged. He will identify if any additional groups have WRITE and/or greater access for specific data sets, and once documented he will work with the IAO to see that they are properly restricted to the ACP (Access Control Program) active on the system. The following is an example of the type of data sets to be protected: SYS2.CA1. SYS2A.CA1..CAILIB SYS2A.CA1..CAILPA Or SYS2A.CA1..CTAPLINK SYS3.CA1. SYS3A.CA1..CAILIB Or SYS3A.CA1..CTAPLINK SYS3A.CA1..CTAPLPA The following commands are provided as a sample for implementing data set controls: $KEY(S2C) $PREFIX(SYS2) CA1.V-.- UID(syspaudt) R(A) W(L) A(L) E(A) CA1.V-.- UID(authorized users/) R(A) E(A) SET RULE COMPILE 'ACF2.MVA.DSNRULES(S2C)' STORE $KEY(SYS2A0C) $MODE(ABORT) $PREFIX(SYS2A) CA1.V-.CAILIB UID(syspaudt) R(A) W(L) A(L) E(A) CA1.V-.CAILIB UID(authorized users/) R(A) E(A) CA1.V-.CAILPA UID(syspaudt) R(A) W(L) A(L) E(A) CA1.V-.CAILPA UID(authorized users/) R(A) E(A) Or CA1.V-. CTAPLINK UID(syspaudt) R(A) W(L) A(L) E(A) CA1.V-. CTAPLINK UID(authorized users/) R(A) E(A) SET RULE COMPILE 'ACF2.MVA.DSNRULES(SYS2A0C)' STORE $KEY(S3C) $PREFIX(SYS3) CA1.V-.- UID(syspaudt) R(A) W(L) A(L) E(A) CA1.V-.- UID(authorized users/) R(A) E(A) SET RULE COMPILE 'ACF2.MVA.DSNRULES(S3C)' STORE $KEY(SYS3A0C) $MODE(ABORT) $PREFIX(SYS3A) CA1.V-.CAILIB UID(syspaudt) R(A) W(L) A(L) E(A) CA1.V-.CAILIB UID(authorized users/) R(A) E(A) Or CA1.V-. CTAPLINK UID(syspaudt) R(A) W(L) A(L) E(A) CA1.V-. CTAPLINK UID(authorized users/) R(A) E(A) CA1.V-. CTAPLPA UID(syspaudt) R(A) W(L) A(L) E(A) CA1.V-. CTAPLPA UID(authorized users/) R(A) E(A) SET RULE COMPILE 'ACF2.MVA.DSNRULES(SYS3A0C)' STORE

Fix Text (F-15790r3_fix)

Ensure that WRITE and/or greater access to CA 1 Tape Management installation data sets is limited to System Programmers only, and all WRITE and/or greater access is logged. READ access can be given to all authorized users.

The installing Systems Programmer will identify and document the product data sets and categorize them according to who will have WRITE and/or greater access and if required that all WRITE and/or greater access is logged. He will identify if any additional groups have WRITE and/or greater access for specific data sets, and once documented he will work with the IAO to see that they are properly restricted to the ACP (Access Control Program) active on the system.

The following is an example of the type of data sets to be protected:
SYS2.CA1.
SYS2A.CA1.*.CAILIB
SYS2A.CA1.*.CAILPA
Or
SYS2A.CA1.*.CTAPLINK
SYS3.CA1.
SYS3A.CA1.*.CAILIB
Or
SYS3A.CA1.*.CTAPLINK
SYS3A.CA1.*.CTAPLPA

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

$KEY(S2C)
$PREFIX(SYS2)
CA1.V-.- UID(syspaudt) R(A) W(L) A(L) E(A)
CA1.V-.- UID(authorized users/*) R(A) E(A)

SET RULE
COMPILE 'ACF2.MVA.DSNRULES(S2C)' STORE

$KEY(SYS2A0C)
$MODE(ABORT)
$PREFIX(SYS2A)
CA1.V-.CAILIB UID(syspaudt) R(A) W(L) A(L) E(A)
CA1.V-.CAILIB UID(authorized users/*) R(A) E(A)
CA1.V-.CAILPA UID(syspaudt) R(A) W(L) A(L) E(A)
CA1.V-.CAILPA UID(authorized users/*) R(A) E(A)
Or
CA1.V-. CTAPLINK UID(syspaudt) R(A) W(L) A(L) E(A)
CA1.V-. CTAPLINK UID(authorized users/*) R(A) E(A)

SET RULE
COMPILE 'ACF2.MVA.DSNRULES(SYS2A0C)' STORE

$KEY(S3C)
$PREFIX(SYS3)
CA1.V-.- UID(syspaudt) R(A) W(L) A(L) E(A)
CA1.V-.- UID(authorized users/*) R(A) E(A)

SET RULE
COMPILE 'ACF2.MVA.DSNRULES(S3C)' STORE

$KEY(SYS3A0C)
$MODE(ABORT)
$PREFIX(SYS3A)
CA1.V-.CAILIB UID(syspaudt) R(A) W(L) A(L) E(A)
CA1.V-.CAILIB UID(authorized users/*) R(A) E(A)
Or
CA1.V-. CTAPLINK UID(syspaudt) R(A) W(L) A(L) E(A)
CA1.V-. CTAPLINK UID(authorized users/*) R(A) E(A)
CA1.V-. CTAPLPA UID(syspaudt) R(A) W(L) A(L) E(A)
CA1.V-. CTAPLPA UID(authorized users/*) R(A) E(A)

SET RULE
COMPILE 'ACF2.MVA.DSNRULES(SYS3A0C)' STORE