STIGQter: STIG Summary: z/OS BMC IOA for TSS Security Technical Implementation Guide Version: 7 Release: 2 Benchmark Date: 01 Oct 2025:

BMC IOA is not properly defined to the Facility Matrix Table for Top Secret.

DISA Rule

SV-224605r1146023_rule

Vulnerability Number

V-224605

Group Title

SRG-OS-000104

Rule Version

ZIOAT036

Severity

CAT II

CCI(s)

• CCI-000764 - Uniquely identify and authenticate organizational users and associate that unique identification with processes acting on behalf of those users.

Weight

10

Fix Recommendation

The BMC IOA systems programmer and the ISSO will ensure that the TOP SECRET Facility Matrix Table is proper defined using the following example:

IOA:
FACILITY(USERxx=NAME=IOA,PGM=IOA,ID=nn,ACTIVE,SHRPRF)
FACILITY(IOA=ASUBM,NOABEND,MULTIUSER,NOXDEF)
FACILITY(IOA=LUMSG,STMSG,SIGN(S),NORNDPW)
FACILITY(IOA=NOAUDIT,RES,WARNPW,NOTSOC)
FACILITY(IOA=MODE=FAIL,LOG(SMF,INIT,MSG,SEC9))
FACILITY(IOA=UIDACID=8,LOCKTIME=000)

Check Contents

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

- TSSCMDS.RPT(FACLIST) - Preferred report containing all control option values in effect including default values.
- TSSCMDS.RPT(TSSPRMFL) - Alternate report containing only control option values explicitly coded at TSS startup.

If the BMC IOA Facility Matrix table is defined as stated below, this is not a finding.

FAC(USERxx=NAME=IOA,PGM=IOA,ID=nn,ACTIVE,SHRPRF,ASUBM)
FAC(IOA=NOABEND,MULTIUSER,NOXDEF,SIGN(S),RES,LUMSG)
FAC(IOA=STMSG,WARNPW,NORNDPW,NOAUDIT,NOTSOC,MODE=FAIL)
FAC(IOA=LOG(SMF,INIT,MSG,SEC9),UIDACID=8,LOCKTIME=000)

Vulnerability Number

V-224605

Documentable

False

Rule Version

ZIOAT036

Severity Override Guidance

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

- TSSCMDS.RPT(FACLIST) - Preferred report containing all control option values in effect including default values.
- TSSCMDS.RPT(TSSPRMFL) - Alternate report containing only control option values explicitly coded at TSS startup.

If the BMC IOA Facility Matrix table is defined as stated below, this is not a finding.

FAC(USERxx=NAME=IOA,PGM=IOA,ID=nn,ACTIVE,SHRPRF,ASUBM)
FAC(IOA=NOABEND,MULTIUSER,NOXDEF,SIGN(S),RES,LUMSG)
FAC(IOA=STMSG,WARNPW,NORNDPW,NOAUDIT,NOTSOC,MODE=FAIL)
FAC(IOA=LOG(SMF,INIT,MSG,SEC9),UIDACID=8,LOCKTIME=000)

Check Content Reference

M

Target Key

4172