I - Mission Critical Public
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000029-GPOS-00010
<GroupDescription></GroupDescription>Group -
IBM z/OS must employ a session manager to manage session lock after a 15-minute period of inactivity.
<VulnDiscussion>A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinit...Rule Medium Severity -
SRG-OS-000030-GPOS-00011
<GroupDescription></GroupDescription>Group -
IBM z/OS must employ a session for users to directly initiate a session lock for all connection types.
<VulnDiscussion>A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the ...Rule Medium Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
IBM z/OS must employ a session manager to manage retaining a users session lock until that user reestablishes access using established identification and authentication procedures.
<VulnDiscussion>A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the ...Rule Medium Severity -
SRG-OS-000002-GPOS-00002
<GroupDescription></GroupDescription>Group -
IBM z/OS system administrator must develop a procedure to remove or disable temporary user accounts after 72 hours.
<VulnDiscussion>Emergency accounts are privileged accounts that are established in response to crisis situations where the need for rapid acc...Rule Medium Severity -
SRG-OS-000123-GPOS-00064
<GroupDescription></GroupDescription>Group -
IBM z/OS system administrator must develop a procedure to remove or disable emergency accounts after the crisis is resolved or 72 hours.
<VulnDiscussion>IBM z/OS system administrator must develop a procedure to remove or disable emergency accounts after the crisis is resolved o...Rule Medium Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
IBM z/OS system administrator must develop a procedure to notify designated personnel if baseline configurations are changed in an unauthorized manner.
<VulnDiscussion>Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...Rule Medium Severity -
SRG-OS-000122-GPOS-00063
<GroupDescription></GroupDescription>Group -
IBM z/OS system administrator must develop a procedure to provide an audit reduction capability that supports on-demand reporting requirements.
<VulnDiscussion>The ability to generate on-demand reports, including after the audit data has been subjected to audit reduction, greatly faci...Rule Medium Severity -
SRG-OS-000126-GPOS-00066
<GroupDescription></GroupDescription>Group -
IBM z/OS system administrator must develop a procedure to terminate all sessions and network connections related to nonlocal maintenance when nonlocal maintenance is completed.
<VulnDiscussion>If a maintenance session or connection remains open after maintenance is completed, it may be hijacked by an attacker and use...Rule Medium Severity -
SRG-OS-000437-GPOS-00194
<GroupDescription></GroupDescription>Group -
IBM z/OS system administrator must develop a procedure to remove all software components after updated versions have been installed.
<VulnDiscussion>Previous versions of software components that are not removed from the information system after updates have been installed m...Rule Medium Severity -
SRG-OS-000447-GPOS-00201
<GroupDescription></GroupDescription>Group -
IBM z/OS must shut down the information system, restart the information system, and/or notify the system administrator when anomalies in the operation of any security functions are discovered.
<VulnDiscussion>If anomalies are not acted upon, security functions may fail to secure the system. Security function is defined as the hard...Rule Medium Severity
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