II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
IBM z/OS JESNEWS resources must be protected in accordance with security requirements.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
IBM z/OS JESTRACE and/or SYSLOG resources must be protected in accordance with security requirements.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
IBM z/OS JES2 spool resources must be controlled in accordance with security requirements.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
IBM z/OS JES2 system commands must be protected in accordance with security requirements.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
IBM z/OS surrogate users must be controlled in accordance with proper security requirements.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
IBM z/OS RJE workstations and NJE nodes must be controlled in accordance with security requirements.
<VulnDiscussion>Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...Rule Medium Severity -
SRG-OS-000279-GPOS-00109
<GroupDescription></GroupDescription>Group -
IBM z/OS must configure system wait times to protect resource availability based on site priorities.
<VulnDiscussion>Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of ...Rule Medium Severity -
SRG-OS-000032-GPOS-00013
<GroupDescription></GroupDescription>Group -
The IBM z/OS BPX.SMF resource must be properly configured.
<VulnDiscussion>Remote access services, such as those providing remote access to network devices and information systems, which lack automate...Rule Medium Severity -
SRG-OS-000392-GPOS-00172
<GroupDescription></GroupDescription>Group -
IBM z/OS SMF recording options for the TN3270 Telnet Server must be properly specified.
<VulnDiscussion>The TN3270 Telnet Server can provide audit data in the form of SMF records. The SMF data produced provides information about ...Rule Medium Severity -
SRG-OS-000001-GPOS-00001
<GroupDescription></GroupDescription>Group -
IBM RACF must be installed and active on the system.
<VulnDiscussion>Enterprise environments make account management for operating systems challenging and complex. A manual process for account m...Rule High Severity -
SRG-OS-000123-GPOS-00064
<GroupDescription></GroupDescription>Group -
The IBM z/OS System Administrator (SA) must develop a process to disable emergency accounts after the crisis is resolved or 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-000274-GPOS-00104
<GroupDescription></GroupDescription>Group -
The IBM z/OS System Administrator (SA) must develop a process to notify appropriate personnel when accounts are created.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000275-GPOS-00105
<GroupDescription></GroupDescription>Group -
The IBM z/OS System Administrator (SA) must develop a process to notify appropriate personnel when accounts are modified.
<VulnDiscussion>Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and mani...Rule Medium Severity -
SRG-OS-000276-GPOS-00106
<GroupDescription></GroupDescription>Group -
The IBM z/OS System Administrator (SA) must develop a process to notify appropriate personnel when accounts are deleted.
<VulnDiscussion>Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and mani...Rule Medium Severity -
SRG-OS-000277-GPOS-00107
<GroupDescription></GroupDescription>Group -
The IBM z/OS System Administrator (SA) must develop a process to notify appropriate personnel when accounts are removed.
<VulnDiscussion>When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual ...Rule Medium Severity -
SRG-OS-000304-GPOS-00121
<GroupDescription></GroupDescription>Group -
The IBM z/OS System Administrator (SA) must develop a process to notify Information System Security Officers (ISSOs) of account enabling actions.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000004-GPOS-00004
<GroupDescription></GroupDescription>Group -
IBM z/OS required SMF data record types must be collected.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
IBM z/OS must employ a session manager to manage display of the Standard Mandatory DoD Notice and Consent Banner.
<VulnDiscussion>Display of a standardized and approved use notification before granting access to the operating system ensures privacy and se...Rule Medium Severity -
SRG-OS-000038-GPOS-00016
<GroupDescription></GroupDescription>Group -
IBM z/OS must specify SMF data options to assure appropriate activation.
<VulnDiscussion>SMF data collection is the basic unit of tracking of all system functions and actions. Included in this tracking data are the...Rule Medium Severity -
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 -
SRG-OS-000342-GPOS-00133
<GroupDescription></GroupDescription>Group -
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
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