STIGQter STIGQter: STIG Summary: IBM z/OS TSS Security Technical Implementation Guide Version: 8 Release: 2 Benchmark Date: 23 Apr 2021:

IBM z/OS must properly protect MCS console userid(s).

DISA Rule

SV-223943r561402_rule

Vulnerability Number

V-223943

Group Title

SRG-OS-000096-GPOS-00050

Rule Version

TSS0-ES-000700

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Review the MCS console resources defined to z/OS and the ACP, and ensure they conform to those outlined below.

Each console defined in the currently active CONSOLxx parmlib member in EXAM.RPT(PARMLIB) is associated with a valid TSS ACID.

Each console ACID has no special privileges and/or attributes (e.g., BYPASSING, CONSOLE, etc.).

Each console ACID has no accesses to interactive on-line facilities (e.g., TSO, CICS, etc.; excluding VTAM SMCS consoles).

Each console can have the Facility of CONSOLE.

Each console ACID will be restricted from accessing all data sets and resources except MVS.MCSOPER.consolename in the OPERCMDS resource class and consolename in the CONSOLE resource class.

NOTE: If LOGON(AUTO) is specified in the currently active CONSOLxx parmlib member, additional access may be required. Permissions for the console ACIDs and/or console profile may be given with access READ to MVS.CONTROL, MVS.DISPLAY, MVS.MONITOR, and MVS.STOPMN OPERCMDS resource.

Example: (These are only examples, not requirements.)

TSS CREATE(consnoautolog) TYPE(PROFILE)
NAME('MCS consoles with no autolog')
DEPT('SYS1')

TSS CREATE(consautolog) TYPE(PROFILE) -
NAME('MCS consoles with autolog') -
DEPT('SYS1')

TSS CREATE(consname) NAME('MCS console name') -
FACILITY(CONSOLE) PASSWORD(password,0) -
PROFILE(consgroup)

TSS PER(consautolog) OPERCMDS(MVS.CONTROL) ACCESS(READ)
TSS PER(consautolog) OPERCMDS(MVS.DISPLAY) ACCESS(READ)
TSS PER(consautolog) OPERCMDS(MVS.MONITOR) ACCESS(READ)
TSS PER(consautolog) OPERCMDS(MVS.STOPMN) ACCESS(READ)

TSS PER(consname) SYSCONS(consname) ACCESS(READ)

Check Contents

Refer to IEASYS00 to determine correct CONSOLxx member.

Examine the CONSOLxx member.

If the following guidance is true, this is not a finding.

Each console defined in the currently active CONSOLxx parmlib member in EXAM.RPT(PARMLIB) is associated with a valid TSS ACID.

Each console ACID has no special privileges and/or attributes (e.g., BYPASSING, CONSOLE, etc.; excluding VTAM SMCS consoles).

Each console ACID has no accesses to interactive on-line facilities (e.g., TSO, CICS, etc.; excluding VTAM SMCS consoles). Each console can have the Facility of CONSOLE.

Each console ACID will be restricted from accessing all data sets and resources except MVS.MCSOPER.consolename in the OPERCMDS resource class and consolename in the CONSOLE resource class.

NOTE: If LOGON(AUTO) is specified in the currently active CONSOLxx parmlib member, additional access may be required. Permissions for the console ACIDs and/or console profile may be given with access READ to MVS.CONTROL, MVS.DISPLAY, MVS.MONITOR, and MVS.STOPMN OPERCMDS resource.

Vulnerability Number

V-223943

Documentable

False

Rule Version

TSS0-ES-000700

Severity Override Guidance

Refer to IEASYS00 to determine correct CONSOLxx member.

Examine the CONSOLxx member.

If the following guidance is true, this is not a finding.

Each console defined in the currently active CONSOLxx parmlib member in EXAM.RPT(PARMLIB) is associated with a valid TSS ACID.

Each console ACID has no special privileges and/or attributes (e.g., BYPASSING, CONSOLE, etc.; excluding VTAM SMCS consoles).

Each console ACID has no accesses to interactive on-line facilities (e.g., TSO, CICS, etc.; excluding VTAM SMCS consoles). Each console can have the Facility of CONSOLE.

Each console ACID will be restricted from accessing all data sets and resources except MVS.MCSOPER.consolename in the OPERCMDS resource class and consolename in the CONSOLE resource class.

NOTE: If LOGON(AUTO) is specified in the currently active CONSOLxx parmlib member, additional access may be required. Permissions for the console ACIDs and/or console profile may be given with access READ to MVS.CONTROL, MVS.DISPLAY, MVS.MONITOR, and MVS.STOPMN OPERCMDS resource.

Check Content Reference

M

Target Key

4102

Comments