BPX resource(s) is(are) not protected in accordance with security requirements.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-6968	ZUSS0021	SV-7271r2_rule	DCCS-1 DCCS-2 ECCD-1 ECCD-2	Medium

Description
OS/390 UNIX ACP-defined resources consist of sensitive capabilities including SUPERUSER, daemon, and numerous file manipulation privileges. Missing or inaccurate protection of these resources could allow a user to access sensitive data, modify or delete data and operating system controls, or issue commands that could negatively impact system availability.

STIG	Date
z/OS ACF2 STIG	2019-12-12

Details

Check Text ( C-3879r1_chk )
a) Refer to the following report produced by the ACF2 Data Collection and Data Set and Resource Data Collection: - SENSITVE.RPT(FACILITY) - ACF2CMDS.RPT(RESOURCE) – Alternate report Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZUSS0021) b) Review the following items for the FACILITY resource class, TYPE(FAC): 1) The ACF2 rules for the BPX resource specify a default access of NONE. 2) There are no ACF2 rules that allow access to the BPX resource. 3) There is no ACF2 rule for BPX.SAFFASTPATH defined. 4) The ACF2 rules for each of the BPX resources listed in the General Facility Class BPX Resources Table, in the z/OS STIG Addendum, specify a default access of NONE. 5) The ACF2 rules for each of the BPX resources listed in the General Facility Class BPX Resources Table, in the z/OS STIG Addendum, restrict access to appropriate system tasks or systems programming personnel. c) If any item in (b) is untrue, this is a FINDING. d) If all items in (b) are true, this is NOT A FINDING.

Check Text ( C-3879r1_chk )

a) Refer to the following report produced by the ACF2 Data Collection and Data Set and Resource Data Collection:

- SENSITVE.RPT(FACILITY)
- ACF2CMDS.RPT(RESOURCE) – Alternate report

Automated Analysis
Refer to the following report produced by the Data Set and Resource Data Collection:

- PDI(ZUSS0021)

b) Review the following items for the FACILITY resource class, TYPE(FAC):

1) The ACF2 rules for the BPX resource specify a default access of NONE.
2) There are no ACF2 rules that allow access to the BPX resource.
3) There is no ACF2 rule for BPX.SAFFASTPATH defined.
4) The ACF2 rules for each of the BPX resources listed in the General Facility Class BPX Resources Table, in the z/OS STIG Addendum, specify a default access of NONE.
5) The ACF2 rules for each of the BPX resources listed in the General Facility Class BPX Resources Table, in the z/OS STIG Addendum, restrict access to appropriate system tasks or systems programming personnel.

c) If any item in (b) is untrue, this is a FINDING.

d) If all items in (b) are true, this is NOT A FINDING.

Fix Text (F-18726r1_fix)
The Systems Programmer and IAO will ensure that BPX. Resources are properly protected and access is restricted to appropriate system tasks or systems programming personnel. Ensure the following items for the FACILITY resource class, TYPE(FAC): 1) The ACF2 rules for the BPX resource specify a default access of NONE. Example: $KEY(BPX) TYPE(FAC) - UID() PREVENT 2) There are no ACF2 rules that allow access to the BPX resource. Example: $KEY(BPX) TYPE(FAC) - UID() PREVENT 3) There is no ACF2 rule for BPX.SAFFASTPATH defined. Example: $KEY(BPX) TYPE(FAC) SAFFASTPATH UID() PREVENT 4) The ACF2 rules for each of the BPX resources listed in the General Facility Class BPX Resources Table, in the zOS STIG Addendum, specify a default access of NONE. Example: $KEY(BPX) TYPE(FAC) DAEMON UID() PREVENT DEBUG UID() PREVENT FILEATTR.APF UID() PREVENT FILEATTR.PROGCTL UID() PREVENT JOBNAME UID() PREVENT SAFFASTPATH UID() PREVENT SERVER UID() PREVENT SMF UID() PREVENT STOR.SWAP UID() PREVENT SUPERUSER UID() PREVENT WLMSERVER UID() PREVENT 5) The ACF2 rules for each of the BPX resources listed in the General Facility Class BPX Resources Table, in the zOS STIG Addendum, restrict access to appropriate system tasks or systems programming personnel as specified. Example: $KEY(BPX) TYPE(FAC) DAEMON UID(*****STC**FTPD) SERVICE(READ) LOG DAEMON UID(***STC**INETD) SERVICE(READ) LOG DAEMON UID(***STC**NAMED) SERVICE(READ) LOG DAEMON UID(***STC**OMVSKERN) SERVICE(READ) LOG DAEMON UID(***STC**OMVS) SERVICE(READ) LOG DAEMON UID(***STC**OROUTED) SERVICE(READ) LOG DAEMON UID(***STC****OSNMPD) SERVICE(READ) LOG

Fix Text (F-18726r1_fix)

The Systems Programmer and IAO will ensure that BPX. Resources are properly protected and access is restricted to appropriate system tasks or systems programming personnel.

Ensure the following items for the FACILITY resource class, TYPE(FAC):

1) The ACF2 rules for the BPX resource specify a default access of NONE.

Example:

$KEY(BPX) TYPE(FAC)
- UID(*) PREVENT

2) There are no ACF2 rules that allow access to the BPX resource.

Example:

$KEY(BPX) TYPE(FAC)
- UID(*) PREVENT

3) There is no ACF2 rule for BPX.SAFFASTPATH defined.

Example:

$KEY(BPX) TYPE(FAC)
SAFFASTPATH UID(*) PREVENT

4) The ACF2 rules for each of the BPX resources listed in the General Facility Class BPX Resources Table, in the zOS STIG Addendum, specify a default access of NONE.

Example:

$KEY(BPX) TYPE(FAC)
DAEMON UID(*) PREVENT
DEBUG UID(*) PREVENT
FILEATTR.APF UID(*) PREVENT
FILEATTR.PROGCTL UID(*) PREVENT
JOBNAME UID(*) PREVENT
SAFFASTPATH UID(*) PREVENT
SERVER UID(*) PREVENT
SMF UID(*) PREVENT
STOR.SWAP UID(*) PREVENT
SUPERUSER UID(*) PREVENT
WLMSERVER UID(*) PREVENT

5) The ACF2 rules for each of the BPX resources listed in the General Facility Class BPX Resources Table, in the zOS STIG Addendum, restrict access to appropriate system tasks or systems programming personnel as specified.

Example:

$KEY(BPX) TYPE(FAC)
DAEMON UID(*******STC******FTPD) SERVICE(READ) LOG
DAEMON UID(*******STC******INETD) SERVICE(READ) LOG
DAEMON UID(*******STC******NAMED) SERVICE(READ) LOG
DAEMON UID(*******STC******OMVSKERN) SERVICE(READ) LOG
DAEMON UID(*******STC******OMVS) SERVICE(READ) LOG
DAEMON UID(*******STC******OROUTED) SERVICE(READ) LOG
DAEMON UID(*******STC******OSNMPD) SERVICE(READ) LOG