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V-224565

CAT II (Medium)

WebSphere MQ context resources defined to the appropriate ADMIN resource class must be protected in accordance with security requirements.

Rule ID

SV-224565r1145080_rule

STIG

zOS WebSphere MQ for RACF Security Technical Implementation Guide

Version

V7R3

CCIs

CCI-000213

Discussion

Context security validates whether a userid has authority to pass or set identity and/or origin data for a message. Context security will be active to avoid security exposure. This exposure could compromise the availability, integrity, and confidentiality of system services, applications, and customer data.

Check Content

Refer to the following reports produced by the RACF Data Collection:

- SENSITVE.RPT(MQADMIN).
- SENSITVE.RPT(MXADMIN).

For all context resources (i.e., ssid.CONTEXT) defined to the MQADMIN and GMQADMIN resource classes (or MXADMIN and GMXADMIN resource classes, if SCYCASE is set to MIXED). If the following guidance is true, this is not a finding.

Note: ssid is the queue manager name (a.k.a., subsystem identifier).

Resource profiles are defined with a UACC(NONE).
Access authorization restricts access to users requiring the ability to pass or set identity and/or origin data for a message. This is difficult to determine. However, an item for concern may be a profile with * READ specified in the access list.

Fix Text

Context security validates whether a userid has authority to pass or set identity and/or origin data for a message. Context security will be active, and all profiles ssid.CONTEXT will be defined to the appropriate ADMIN class with UACC(NONE) specified, where ssid is the queue manager name.

READ access is required when the PASS option is specified for an MQOPEN or MQPUT1. Update or control access is required when the SET or OUTPUT option is specified.

For all context resources (i.e., ssid.CONTEXT) defined to the MQADMIN or MXADMIN resource class, ensure the following items are in effect:

Note: ssid is the queue manager name (a.k.a., subsystem identifier).

Resource profiles are defined with a UACC(NONE).
Access authorization restricts access to users requiring the ability to pass or set identity and/or origin data for a message. This is difficult to determine. However, an item for concern may be a profile with * READ specified in the access list.

A set of sample commands are provided below to implement the minimum profiles necessary for proper security. 

/* THE FOLLOWING PROFILE FORCES GRANULAR PROFILES DEFINITIONS */
RDEF MQADMIN ** UACC(NONE) OWNER(ADMIN) AUDIT(ALL(READ)) DATA('MQADMIN DENY-BY-DEFAULT PROFILE')

RDEF MQADMIN <ssid>.CONTEXT UACC(NONE) OWNER(ADMIN) AUDIT(ALL(READ)) DATA('MQADMIN PROFILE REQUIRED FOR CONTEXT SECURITY')

The following is a sample of the commands required to allow a systems programming group (SYS1) to offload and reload messages for queue manager (QMD1):

PERMIT QMD1.CONTEXT CLASS(MQADMIN) ID(SYS1) ACCESS(CONTROL)

The following refresh is required for RACListed classes:

SETR RACL(MQADMIN) REF

Note that an additional WebSphere MQ Refresh may be required for active queue managers. This is done from the CONSOLE:

The example is for a queue manager named QMD1:
>QMD1 REFRESH SECURITY(*)