STIGQter: STIG Summary: IBM z/OS RACF Security Technical Implementation Guide Version: 8 Release: 3 Benchmark Date: 23 Apr 2021:

IBM RACF must properly define users that have access to the CONSOLE resource in the TSOAUTH resource class.

DISA Rule

SV-223656r604139_rule

Vulnerability Number

V-223656

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

RACF-ES-000080

Severity

CAT II

CCI(s)

• CCI-000213 - The information system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Evaluate the impact of correcting any deficiencies. Develop a plan of action and implement the required changes.
Ensure the following items are in effect for all MCS consoles:

Define a profile protecting the use of the CONSOLE command within TSO. A sample command to accomplish this is shown here: RDEF TSOAUTH CONSOLE UACC(NONE) OWNER(ADMIN) AUDIT(ALL(READ))

Permit only authorized users. A sample command to accomplish this is shown here: PE CONSOLE CL(TSOAUTH) ID(<syspsmpl>)

Set up the OPERPARM segment in corresponding user-class entry. A sample command to accomplish this is shown here: ALU <authorized user> OPERPARM(AUTH(INFO))

Userids are restricted to READ access to the MVS.MCSOPER.userid resource defined in the OPERCMDS resource class. A sample command to accomplish this is shown here using the GLOBAL class:
RDEF GLOBAL OPERCMDS ADDMEM(MVS.MCSOPER.&RACUID/READ) OWNER(ADMIN)

Check Contents

If the CONSOLE privilege is not defined to the TSOAUTH resource class, this is not a finding.

At the discretion of the site, users may be allowed to issue z/OS system commands from a TSO session. With this in mind, review the following items for users granted the CONSOLE resource in the TSOAUTH resource class:

If Userids are restricted to the INFO level on the AUTH parameter specified in the OPERPARM segment of their userid, this is not a finding.

If Userids are restricted to READ access to the MVS.MCSOPER.userid resource defined in the OPERCMDS resource class, this is not a finding.

If Userids and/or group IDs are restricted to READ access to the CONSOLE resource defined in the TSOAUTH resource class, this is not a finding.

Vulnerability Number

V-223656

Documentable

False

Rule Version

RACF-ES-000080

Severity Override Guidance

If the CONSOLE privilege is not defined to the TSOAUTH resource class, this is not a finding.

At the discretion of the site, users may be allowed to issue z/OS system commands from a TSO session. With this in mind, review the following items for users granted the CONSOLE resource in the TSOAUTH resource class:

If Userids are restricted to the INFO level on the AUTH parameter specified in the OPERPARM segment of their userid, this is not a finding.

If Userids are restricted to READ access to the MVS.MCSOPER.userid resource defined in the OPERCMDS resource class, this is not a finding.

If Userids and/or group IDs are restricted to READ access to the CONSOLE resource defined in the TSOAUTH resource class, this is not a finding.

Check Content Reference

M

Target Key

4101

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