IBM z/OS RACF Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000341-GPOS-00132
<GroupDescription></GroupDescription>Group -
IBM z/OS SMF collection files (system MANx datasets or LOGSTREAM DASD) must have storage capacity to store at least one weeks worth of audit data.
<VulnDiscussion>In order to ensure operating systems have a sufficient storage capacity in which to write the audit logs, operating systems n...Rule Medium Severity -
IBM z/OS system administrators must develop an automated process to collect and retain SMF data.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Medium Severity -
SRG-OS-000343-GPOS-00134
<GroupDescription></GroupDescription>Group -
IBM z/OS BUFUSEWARN in the SMFPRMxx must be properly set.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....Rule Medium Severity -
SRG-OS-000047-GPOS-00023
<GroupDescription></GroupDescription>Group -
IBM z/OS NOBUFFS in SMFPRMxx must be properly set (default is MSG).
<VulnDiscussion>It is critical that when the operating system is at risk of failing to process audit logs as required, it takes action to mit...Rule Medium Severity -
SRG-OS-000355-GPOS-00143
<GroupDescription></GroupDescription>Group -
The IBM z/OS SNTP daemon (SNTPD) must be active.
<VulnDiscussion>Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...Rule Medium Severity -
SRG-OS-000355-GPOS-00143
<GroupDescription></GroupDescription>Group -
IBM z/OS SNTP daemon (SNTPD) permission bits must be properly configured.
<VulnDiscussion>Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...Rule Medium Severity -
SRG-OS-000356-GPOS-00144
<GroupDescription></GroupDescription>Group -
IBM z/OS LNKAUTH=APFTAB must be specified in the IEASYSxx member(s) in the currently active parmlib data set(s).
<VulnDiscussion>Failure to specify LINKAUTH=APFTAB allows libraries other than those designated as APF to contain authorized modules which co...Rule Medium Severity -
SRG-OS-000095-GPOS-00049
<GroupDescription></GroupDescription>Group -
IBM z/OS PARMLIB CLOCKxx must have the Accuracy PARM properly coded.
<VulnDiscussion>Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...Rule Medium Severity -
SRG-OS-000370-GPOS-00155
<GroupDescription></GroupDescription>Group -
IBM RACF must define UACC of NONE on all profiles.
<VulnDiscussion>The operating system must employ a deny-all, permit-by-exception policy to allow the execution of authorized software program...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
IBM z/OS PASSWORD data set and OS passwords must not be used.
<VulnDiscussion>Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...Rule Medium Severity -
SRG-OS-000480-GPOS-00232
<GroupDescription></GroupDescription>Group
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