STIGQter: STIG Summary: IBM z/OS ACF2 Security Technical Implementation Guide Version: 8 Release: 2 Benchmark Date: 23 Apr 2021:

IBM z/OS JESTRACE and/or SYSLOG resources must be protected in accordance with security requirements.

DISA Rule

SV-223528r533198_rule

Vulnerability Number

V-223528

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

ACF2-JS-000010

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

NOTE: If CLASMAP defines JESSPOOL as anything other than TYPE(SPL), replace SPL below with the appropriate three letters.

Configure the following resources in the JESSPOOL resource class (i.e., TYPE(SPL)):

localnodeid.JES2.$TRCLOG.taskid.-.JESTRACE
localnodeid.+MASTER+.SYSLOG.jobid.-.SYSLOG or
localnodeid.+BYPASS+.SYSLOG.jobid.-.SYSLOG

NOTE: These resource rules may be more generic as long as they pertain directly to the JESTRACE and SYSLOG data sets. For example:
localnodeid.JES2.-.-.-.JESTRACE
localnodeid.+MASTER+.-.-.-.- or
localnodeid.+BYPASS+.-.-.-.-

NOTE: To determine the localnodeid by searching for OWNNODE in the NJEDEF statement, and then searching for NODE(nnnn) (where nnnn is the value specified by OWNNODE). The NAME parameter value specified on this NODE statement is the localnodeid. Another method is to issue the JES2 command $D NODE,NAME,OWNNODE=YES to obtain the NAME of the OWNNODE.

Configure access authorization for the resources mentioned above is restricted to the following:

Logonid(s) associated with external writer(s) can have complete access.

NOTE: An external writer is a STC that removes data sets from the JES spool. In this case, it is responsible for archiving the JESTRACE and SYSLOG data sets. The STC default name is XWTR and the external writer program is called IASXWR00.

Systems personnel and security administrators responsible for diagnosing JES2 and z/OS problems can have complete access.

Application Development and Application Support personnel responsible for diagnosing application problems can have READ access to the SYSLOG resource.

Example:
SET R(SPL)
$KEY(localnodeid) TYPE(SPL)
-.SYSLOG.-.-.- UID(sysprgmr) ALLOW
-.SYSLOG.-.-.- UID(seca) ALLOW
-.SYSLOG.-.-.- UID(appdudt) SERVICE(READ) ALLOW
-.SYSLOG.-.-.- UID(apps) SERVICE(READ) ALLOW
-.$TRCLOG.-.-.- UID(sysprgmr) ALLOW
-.$TRCLOG.-.-.- UID(seca) ALLOW
- UID(*) PREVENT

Check Contents

From the ACF command screen enter:
Set RESOURCE(SPL)
List like(localnodeid-)

If the following resources in the JESSPOOL resource class (i.e., TYPE(SPL)) are configured as noted below, this is not a finding.

localnodeid.JES2.$TRCLOG.taskid.-.JESTRACE
localnodeid.+MASTER+.SYSLOG.jobid.-.SYSLOG or
localnodeid.+BYPASS+.SYSLOG.jobid.-.SYSLOG

NOTE: These resource rules may be more generic as long as they pertain directly to the JESTRACE and SYSLOG data sets. For example:
localnodeid.JES2.-.-.-.JESTRACE
localnodeid.+MASTER+.-.-.-.SYSLOG or
localnodeid.+BYPASS+.-.-.-.SYSLOG

NOTE: To determine the localnodeid by searching for OWNNODE in the NJEDEF statement, and then searching for NODE(nnnn) (where nnnn is the value specified by OWNNODE). The NAME parameter value specified on this NODE statement is the localnodeid. Another method is to issue the JES2 command $D NODE,NAME,OWNNODE=YES to obtain the NAME of the OWNNODE.

If access authorization for the resources mentioned above is restricted to the following, this is not a finding.

Logonid(s) associated with external writer(s) can have complete access.

NOTE: An external writer is an STC that removes data sets from the JES spool. In this case, it is responsible for archiving the JESTRACE and SYSLOG data sets. The STC default name is XWTR and the external writer program is called IASXWR00.

Systems personnel and security administrators responsible for diagnosing JES2 and z/OS problems can have complete access.

Application Development and Application Support personnel responsible for diagnosing application problems can have READ access to the SYSLOG resource.

Vulnerability Number

V-223528

Documentable

False

Rule Version

ACF2-JS-000010

Severity Override Guidance

From the ACF command screen enter:
Set RESOURCE(SPL)
List like(localnodeid-)

If the following resources in the JESSPOOL resource class (i.e., TYPE(SPL)) are configured as noted below, this is not a finding.

localnodeid.JES2.$TRCLOG.taskid.-.JESTRACE
localnodeid.+MASTER+.SYSLOG.jobid.-.SYSLOG or
localnodeid.+BYPASS+.SYSLOG.jobid.-.SYSLOG

NOTE: These resource rules may be more generic as long as they pertain directly to the JESTRACE and SYSLOG data sets. For example:
localnodeid.JES2.-.-.-.JESTRACE
localnodeid.+MASTER+.-.-.-.SYSLOG or
localnodeid.+BYPASS+.-.-.-.SYSLOG

NOTE: To determine the localnodeid by searching for OWNNODE in the NJEDEF statement, and then searching for NODE(nnnn) (where nnnn is the value specified by OWNNODE). The NAME parameter value specified on this NODE statement is the localnodeid. Another method is to issue the JES2 command $D NODE,NAME,OWNNODE=YES to obtain the NAME of the OWNNODE.

If access authorization for the resources mentioned above is restricted to the following, this is not a finding.

Logonid(s) associated with external writer(s) can have complete access.

NOTE: An external writer is an STC that removes data sets from the JES spool. In this case, it is responsible for archiving the JESTRACE and SYSLOG data sets. The STC default name is XWTR and the external writer program is called IASXWR00.

Systems personnel and security administrators responsible for diagnosing JES2 and z/OS problems can have complete access.

Application Development and Application Support personnel responsible for diagnosing application problems can have READ access to the SYSLOG resource.

Check Content Reference

M

Target Key

4100

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