IBM z/OS ACF2 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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ACF2 REFRESH attribute must be restricted to security administrators' LOGON ID only.
<VulnDiscussion>Users with the refresh attribute have the ability to effect changes to ESM global system options. Unauthorized use could resu...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
ACF2 maintenance LOGONIDs must have corresponding GSO MAINT records.
<VulnDiscussion>Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
ACF2 LOGONIDs with the NON-CNCL attribute specified in the associated LOGONID record must be listed as trusted and must be specifically approved.
<VulnDiscussion>Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
ACF2 LOGONIDs with the ACCOUNT, LEADER, or SECURITY attribute must be properly scoped.
<VulnDiscussion>Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
ACF2 LOGONIDs associated with started tasks that have the MUSASS attribute and the requirement to submit jobs on behalf of its users must have the JOBFROM attribute as required.
<VulnDiscussion>Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...Rule Medium Severity -
IBM z/OS Started Tasks must be properly identified and defined to ACF2.
<VulnDiscussion>Started procedures have system generated job statements that do not contain the user, group, or password statements. To enabl...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
ACF2 emergency LOGONIDS with the REFRESH attribute must have the SUSPEND attribute specified.
<VulnDiscussion>Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
ACF2 BACKUP GSO record must be defined with a TIME value specifies greater than 00 unless the database is shared and backed up on another system.
<VulnDiscussion>Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
ACF2 APPLDEF GSO record if used must have supporting documentation indicating the reason it was used.
<VulnDiscussion>Failure to restrict network connectivity only to authorized systems permits inbound connections from malicious systems. It al...Rule Low Severity -
SRG-OS-000368-GPOS-00154
<GroupDescription></GroupDescription>Group -
ACF2 MAINT GSO record value if specified must be restricted to production storage management user.
<VulnDiscussion>Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may pr...Rule Medium Severity -
SRG-OS-000368-GPOS-00154
<GroupDescription></GroupDescription>Group -
ACF2 LINKLST GSO record if specified must only contains trusted system data sets.
<VulnDiscussion>Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may pr...Rule Medium Severity
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