Ensure that access to all APF-authorized objects is controlled

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Description

The Authorized Program List (APF) designates those libraries that can contain program modules which possess a significant level of security bypass capability. The extattr command can grant the same capability in the UNIX file system, and is secured by the BPX.FILEATTR.APF resource in the FACILITY class.

Méthode de vérification

Méthode d'audit: Revue manuelle

Cette recommandation ne peut pas être vérifiée automatiquement. Une analyse la liste avec ces instructions lorsque vous passez --include-manual.

Issue the following TSO command: SETROPTS LIST Review the command output in the ACTIVE CLASSES = section. Verify that FACILITY and OPERCMDS appears. Review the command output in the GENERIC PROFILE CLASSES = section. Verify that FACILITY and OPERCMDS appears. Review the command output in the SETR RACLIST CLASSES = section. Verify that FACILITY and OPERCMDS appears. Request the following DSMON report: FUNCTION SYSTEM RACGAC Verify that the DATASET entry has: -- GLOBAL INACTIVE -- or -- NO ENTRIES -- or contains no entries covering APF data sets Verify that ... (full steps: CIS section 2.2.7)

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

To activate RACF classes use the RACF SETROPTS command: SETROPTS CLASSACT(FACILITY) SETROPTS CLASSACT(OPERCMDS) To enable generic profile checking for a RACF class use the RACF SETROPTS command: SETROPTS GENERIC(FACILITY) SETROPTS GENERIC(OPERCMDS) To RACLIST a RACF class use the RACF SETROPTS command: SETROPTS RACLIST(FACILITY) SETROPTS RACLIST(OPERCMDS) To create a DATASET profile use the RACF ADDSD and PERMIT commands: ADDSD '<profile>' GENERIC + UACC(NONE) + AUDIT(SUCCESS(UPDATE),FAILURES(READ)) + DATA('APF LIBRARY') PERMIT '<profile>' GENERIC + ACCESS(READ) ID(*) PERMIT '<profile>' GENERIC + ACCESS(ALTER) ID(SYSPROG) SETROPTS REFRESH GENERIC(DATASET) To create a FACILITY or OPERCMDS profile use the RACF RDEFINE, PERMIT, and SETROPTS commands: RDEFINE FACILITY BPX.FILEATTR.APF + UACC(NONE) + AUDIT(ALL(READ)) + DATA('ACCESS TO SET APF AUTHORIZATION ON UNIX FILE') PERMIT BPX.FILEATTR.APF CLASS(FACILITY) + ACCESS(READ) ID(SYSPROG) SETROPTS REFRESH RACLIST(FACILITY) RDEFINE OPERCMDS MVS.SETPROG + UACC(NONE) + AUDIT(SUCCESS(UPDATE),FAILURES(READ)) + DATA('SETPROG COMMAND') PERMIT MVS.SETPROG CLASS(OPERCMDS) + ACCESS(UPDATE) ID(SYSPROG) RDEFINE OPERCMDS ... (see CIS section 2.2.7)

Propriétés

Systèmes d'exploitation: Tous
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Référence: CIS IBM z/OS with RACF Benchmark v1.0.0 - 2.2.7 Ensure that access to all APF-authorized objects is controlled