CL/SuperSession is not properly defined to the Facility Matrix Table for Top Secret.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-224655 | ZCLST036 | SV-224655r1145880_rule | CCI-000764 | medium |
| Description | ||||
| Improperly defined security controls for the Product could result in the compromise of the network, operating system, and customer data. | ||||
| STIG | Date | |||
| z/OS CL/SuperSession for TSS Security Technical Implementation Guide | 2025-09-28 | |||
Details
Check Text (C-224655r1145880_chk)
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 CL/SuperSession Facility Matrix table is defined as stated below, this is not a finding.
*KLS CL/SUPERSESSION
FACILITY(USERxx=NAME=KLS)
FACILITY(KLS=MODE=FAIL,ACTIVE,SHRPRF)
FACILITY(KLS=PGM=KLV,NOASUBM,NOABEND,NOXDEF)
FACILITY(KLS=ID=xx,MULTIUSER,RES,LUMSG,STMSG,WARNPW,SIGN(M))
FACILITY(KLS=NOINSTDATA,NORNDPW,AUTHINIT,NOPROMPT,NOAUDIT)
FACILITY(KLS=NOTSOC,LOG(INIT,SMF,MSG,SEC9))
Fix Text (F-26326r519783_fix)
Define the CT/Engine started task name KLS as a Facility to TOP SECRET in the Facility Matrix Table using the following example:
*KLS CL/SUPERSESSION
FACILITY(USERxx=NAME=KLS)
FACILITY(KLS=MODE=FAIL,ACTIVE,SHRPRF)
FACILITY(KLS=PGM=KLV,NOASUBM,NOABEND,NOXDEF)
FACILITY(KLS=ID=xx,MULTIUSER,RES,LUMSG,STMSG,WARNPW,SIGN(M))
FACILITY(KLS=NOINSTDATA,NORNDPW,AUTHINIT,NOPROMPT,NOAUDIT)
FACILITY(KLS=NOTSOC,LOG(INIT,SMF,MSG,SEC9))