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z/OS IBM System Display and Search Facility (SDSF) for ACF2 STIG

  • Version/Release: V6R8
  • Published: 2016-03-28
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b
IBM System Display and Search Facility (SDSF) installation data sets will be properly protected.
AC-3 - Medium - CCI-000213 - V-16932 - SV-40696r1_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-000213
Version
ZISFA000
Vuln IDs
  • V-16932
Rule IDs
  • SV-40696r1_rule
IBM System Display and Search Facility (SDSF) 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.Information Assurance OfficerSystems Programmer
Checks: C-4700r1_chk

Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(ISFRPT) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZISF0000) Verify that the accesses to the IBM System Display and Search Facility (SDSF) 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: F-18290r1_fix

The IAO will ensure that WRITE and/or greater access to IBM System Display and Search Facility (SDSF) 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. Data sets to be protected will be: SYS1.ISF.AISF SYS1.ISF.SISF The following commands are provided as a sample for implementing data set controls: $KEY(S1I) $PREFIX(SYS1) ISF.AISF-.- UID(syspaudt) R(A) W(L) A(L) E(A) ISF.SISF-.- UID(syspaudt) R(A) W(L) A(L) E(A) ISF.SISF-.- UID(authorized users/*) R(A) E(A) SET RULE COMPILE 'ACF2.MVA.DSNRULES(S1I)' STORE

b
IBM System Display and Search Facility (SDSF) Started Task name will be properly identified and/or defined to the system ACP.
IA-2 - Medium - CCI-000764 - V-17452 - SV-40821r1_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
ZISFA030
Vuln IDs
  • V-17452
Rule IDs
  • SV-40821r1_rule
IBM System Display and Search Facility (SDSF) requires a started task that will be restricted to certain resources, datasets and other system functions. By defining the started task as a userid to the system ACP, It allows the ACP to control the access and authorized users that require these capabilities. Failure to properly control these capabilities, could compromise of the operating system environment, ACP, and customer data.Information Assurance OfficerSystems Programmer
Checks: C-26989r1_chk

Refer to the following report produced by the ACF2 Data Collection: - ACF2CMDS.RPT(ATTSTC) Verify that the logonid(s) for the IBM System Display and Search Facility (SDSF) started task(s) is (are) properly defined. If the following attributes are defined, this is not a finding. STC

Fix: F-179r1_fix

The IAO working with the systems programmer will ensure the IBM System Display and Search Facility (SDSF) Started Task(s) is properly identified and/or defined to the System ACP. If the product requires a Started Task, verify that it is properly defined to the System ACP with the proper attributes. Most installation manuals will indicate how a Started Task is identified and any additional attributes that must be specified. The following commands are provided as a sample for defining Started Task(s): SET LID insert SDSF stc name('STC, SDSF')

b
IBM System Display and Search Facility (SDSF) resources must be properly defined and protected.
AC-4 - Medium - CCI-000035 - V-17947 - SV-40818r5_rule
RMF Control
AC-4
Severity
Medium
CCI
CCI-000035
Version
ZISFA020
Vuln IDs
  • V-17947
Rule IDs
  • SV-40818r5_rule
IBM System Display and Search Facility (SDSF) 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.trueInformation Assurance OfficerSystems ProgrammerECCD-1, ECCD-2
Checks: C-44685r3_chk

Refer to the following report produced by the ACF2 Data Collection and Data Set and Resource Data Collection: - SENSITVE.RPT(ZISF0020) - ACF2CMDS.RPT(RESOURCE) – Alternate report Automated Analysis requiring additional analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZISF0020) Ensure that all IBM System Display and Search Facility (SDSF) resources are properly protected according to the requirements specified in SDSF SAF Resources table in the z/OS STIG Addendum. If the following guidance is true, this is not a finding. ___ The ACF2 resources and/or generic equivalent as designated in the above table are defined with a default access of NONE. ___ The ACF2 resource access authorizations restrict access to the appropriate personnel as designated in the above table. ___ The ACF2 resource logging is specified as designated in the above table. ___ The ACF2 resource access authorizations for SDSF GROUP.group-name will require additional analysis to justify access.

Fix: F-18746r6_fix

The IAO will work with the systems programmer to verify that the following are properly specified in the ACP. (Note: The resource type, resources, and/or resource prefixes identified below are examples of a possible installation. The actual resource type, resources, and/or resource prefixes are determined when the product is actually installed on a system through the product’s installation guide and can be site specific.) Ensure that the IBM System Display and Search Facility (SDSF) resource access is in accordance with those outlined in SDSF SAF Resources table in the zOS STIG Addendum. Use SDSF SAF Resources and SDSF SAF Resource Descriptions tables in the zOS STIG Addendum. These tables list the resources and access requirements for IBM System Display and Search Facility (SDSF); ensure the following guidelines are followed: The ACF2 resources and/or generic equivalent as designated in the above table are defined with a default access of NONE. The ACF2 resource access authorizations restrict access to the appropriate personnel as designated in the above table. The ACF2 resource logging is specified as designated in the above table. The ACF2 resource access authorizations for SDSF GROUP.group-name will require additional analysis to justify access. The following commands are provided as a sample for implementing resource controls: $KEY(ISFATTR) TYPE(SDS) JOBCL.- UID(operaudt) SERVICE(READ,UPDATE) ALLOW JOBCL.- UID(syspaudt) SERVICE(READ,UPDATE) ALLOW - UID(*) PREVENT

b
IBM System Display and Search Facility (SDSF) resources will be properly defined and protected.
AC-4 - Medium - CCI-000035 - V-17982 - SV-40749r1_rule
RMF Control
AC-4
Severity
Medium
CCI
CCI-000035
Version
ZISFA021
Vuln IDs
  • V-17982
Rule IDs
  • SV-40749r1_rule
IBM System Display and Search Facility (SDSF) 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.Information Assurance OfficerSystems Programmer
Checks: C-20543r1_chk

Refer to the following report produced by the ACF2 Data Collection and Data Set and Resource Data Collection: - SENSITVE.RPT(ZISF0021) - ACF2CMDS.RPT(RESOURCE) – Alternate report Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZISF0021) Ensure that all SDSF resources are properly protected according to the requirements specified in the SDSF Server OPERCMDS Resources table in the z/OS STIG Addendum. If the following guidance is true, this is not a finding. ___ The ACF2 resources and/or generic equivalent as designated in the above table are defined with a default access of NONE. ___ The ACF2 resource access authorizations restrict access to the appropriate personnel as designated in the above table. ___ The ACF2 resource logging is specified as designated in the above table.

Fix: F-456r1_fix

The IAO will work with the systems programmer to verify that the following are properly specified in the ACP. Ensure that the IBM System Display and Search Facility (SDSF) resource access is in accordance with those outlined in SDSF Server OPERCMDS Resources table in the zOS STIG Addendum. Use SDSF Server OPERCMDS Resources table in the zOS STIG Addendum. These tables list the resources and access requirements for IBM System Display and Search Facility (SDSF); ensure the following guidelines are followed: The ACF2 resources and/or generic equivalent as designated in the above table are defined with a default access of NONE. The ACF2 resource access authorizations restrict access to the appropriate personnel as designated in the above table. The ACF2 resource logging is specified as designated in the above table. The following commands are provided as a sample for implementing resource controls: $KEY(SDSF) TYPE(OPR) MODIFY.DISPLAY UID(audtaudt) SERVICE(READ) MODIFY.DISPLAY UID(operaudt) SERVICE(READ) MODIFY.DISPLAY UID(syspaudt) SERVICE(READ) MODIFY.- UID(syspaudt) SERVICE(READ,UPDATE,DELETE) LOG - UID(*) PREVENT

b
IBM System Display and Search Facility (SDSF) Resource Class will be defined or active in the ACP.
CM-4 - Medium - CCI-000336 - V-18011 - SV-40830r1_rule
RMF Control
CM-4
Severity
Medium
CCI
CCI-000336
Version
ZISFA038
Vuln IDs
  • V-18011
Rule IDs
  • SV-40830r1_rule
Failure to use a robust ACP to control a product could potentially compromise the integrity and availability of the MVS operating system and user data.Information Assurance Officer
Checks: C-3274r1_chk

Refer to the following report produced by the ACF2 Data Collection: - ACF2CMDS.RPT(ACFGSO) If the following GSO CLASMAP record entry(ies) is (are) defined, this is not a finding. CLASMAP.SDSF RESOURCE(SDSF) RSRCTYPE(SDS) ENTITYLN(39)

Fix: F-214r1_fix

The IAO will use SAF security to define and protect the IBM System Display and Search Facility (SDSF) resource class(es). Use the following commands as an example: CLASMAP.SDSF RESOURCE(SDSF) RSRCTYPE(SDS) ENTITYLN(39)

b
IBM System Display and Search Facility (SDSF) Configuration parameters must be correctly specified.
AC-4 - Medium - CCI-000035 - V-18014 - SV-40746r5_rule
RMF Control
AC-4
Severity
Medium
CCI
CCI-000035
Version
ZISF0040
Vuln IDs
  • V-18014
Rule IDs
  • SV-40746r5_rule
IBM System Display and Search Facility (SDSF) ISFPARMS defines global options, panel formats, and security for SDSF. Failure to properly specify these parameter values could potentially compromise the integrity and availability of the MVS operating system and user data.Systems Programmer
Checks: C-10817r5_chk

Refer to the JCL procedure libraries defined to JES2 for the SDSF started task member for SDSFPARM DD statement. Refer to the ISRPRMxx members in the logical PARMLIB concatenation. Refer to the results of the “F SDSF,D” command. Where SDSF should specify the SDSF started task name. Automated Analysis Refer to the following report produced by the z/OS Data Collection: - PDI(ZISF0040) Ensure the following Group Parameters are specified or not specified in the GROUP statements defined in the ISFPARMS members. If the following guidance is true, this is not a finding. For each GROUP statement: AUPDT(0) AUTH will not be specified CMDAUTH will not be specified CMDLEV will not be specified DSPAUTH will not be specified NAME a value will be specified for the NAME

Fix: F-444r6_fix

Ensure that the following Group function parameters appear and/or do not appear in ISFPARMS. For each GROUP statement: AUPDT(0) AUTH will not be specified CMDAUTH will not be specified CMDLEV will not be specified DSPAUTH will not be specified NAME a value will be specified for the NAME The ISFPARMS GROUP statement defines user groups and their characteristics. Some of these characteristics include access authorization to SDSF functions and commands. Access to these functions and commands will be controlled using SAF resources. The use of the SAF interface is consistent with the DOD requirement to control all products within the operating system using the ACP. To ensure SAF security is always in effect, authorizations to SDSF functions and commands should not be defined in ISFPARMS DD statement in the SDSF JCL member.

b
IBM System Display and Search Facility (SDSF) HASPINDX data set identified in the INDEX parameter must be properly protected.
AC-3 - Medium - CCI-000213 - V-21592 - SV-40730r2_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-000213
Version
ZISFA002
Vuln IDs
  • V-21592
Rule IDs
  • SV-40730r2_rule
IBM System Display and Search Facility (SDSF) HASPINDX data set control the execution, configuration, and security of the SDSF products. Failure to properly protect access to these data sets could result in unauthorized access. This exposure may threaten the availability of SDSF, and compromise the confidentiality of customer data.Systems ProgrammerInformation Assurance Officer
Checks: C-67761r1_chk

If the z/OS operating system is Release 2.2 or higher this is not applicable. Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(SDSFRPT) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZISF0002) Verify that the accesses to the IBM System Display and Search Facility (SDSF) HASPINDX data set specified on the INDEX control statement in the ISFPARMS statements (identified in the SFSFPARM DD statement of the SDSF stc) 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 the auditors. ___ The ACF2 data set rules for the data sets restricts UPDATE access to SDSF Started Tasks. ___ The ACF2 data set rules for the data sets restricts WRITE and/or greater access to systems programming personnel. Note: If running z/OS V1R11 or above, with the use of a new JES logical log, the HASPINDX, may not exist and may make this vulnerability not applicable (N/A). However if used the HASPINDX dataset must be restricted. Note: If running z/OS V1R11 systems or above and NOT using JES logical log, the HASPINDX data set must be protected.

Fix: F-73273r1_fix

Ensure that the HASPINDX dataset identified in the INDEX parameter value of ISFPARMS options statement is restricted as described below. The HASPINDX data set is used by SDSF when building the SYSLOG panel. This data set contains information related to all SYSLOG jobs and data sets on the spool. Since SDSF dynamically allocates this data set, explicit user access authorization to this data set should not be required. Due to the potentially sensitive data in this data set, access authorization will be restricted. READ access is restricted to the auditors. UPDATE access is restricted to SDSF Started Tasks. WRITE and/or greater access is restricted to systems programming personnel. Note: If running z/OS V1R11 or above, with the use of a new JES logical log, the HASPINDX, may not exist and may make this vulnerability not applicable (N/A). However if used the HASPINDX dataset must be restricted. Note: If running z/OS V1R11 systems or above and NOT using JES logical log, the HASPINDX data set must be protected. Data sets to be protected may be: SYS1.HASPINDX The following commands are provided as a sample for implementing data set controls: $KEY(S1H) $PREFIX(SYS1) HASPINDX.- UID(syspaudt) R(A) W(A) A(A) E(A) HASPINDX.- UID(sdsf stc) R(A) W(A) E(A) HASPINDX.- UID(audtaudt) R(A) E(A) SET RULE COMPILE 'ACF2.MVA.DSNRULES(S1H)' STORE