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Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000002-GPOS-00002

    <GroupDescription></GroupDescription>
    Group
  • The IBM z/OS system administrator (SA) must develop a procedure to automatically remove or disable temporary user accounts after 72 hours.

    &lt;VulnDiscussion&gt;If temporary user accounts remain active when no longer needed or for an excessive period, these accounts may be used to gain...
    Rule Medium Severity
  • SRG-OS-000123-GPOS-00064

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS system administrator must develop a procedure to automatically remove or disable emergency accounts after the crisis is resolved or 72 hours.

    &lt;VulnDiscussion&gt;Emergency accounts are privileged accounts that are established in response to crisis situations where the need for rapid acc...
    Rule Medium Severity
  • SRG-OS-000304-GPOS-00121

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS system administrator must develop a procedure to notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions.

    &lt;VulnDiscussion&gt;Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...
    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.

    &lt;VulnDiscussion&gt;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 system administrator must develop a procedure to 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.

    &lt;VulnDiscussion&gt;If anomalies are not acted upon, security functions may fail to secure the system. Security function is defined as the hard...
    Rule Medium Severity
  • SRG-OS-000030-GPOS-00011

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS must employ a session manager configured for users to directly initiate a session lock for all connection types.

    &lt;VulnDiscussion&gt;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-000118-GPOS-00060

    <GroupDescription></GroupDescription>
    Group
  • ACF2 system administrator must develop a procedure to disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity.

    &lt;VulnDiscussion&gt;Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potenti...
    Rule Medium Severity
  • SRG-OS-000479-GPOS-00224

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS system administrator must develop a procedure to offload SMF files to a different system or media than the system being audited.

    &lt;VulnDiscussion&gt;Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...
    Rule Medium Severity
  • SRG-OS-000032-GPOS-00013

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS SMF recording options for the SSH daemon must be configured to write SMF records for all eligible events.

    &lt;VulnDiscussion&gt;Remote access services, such as those providing remote access to network devices and information systems, which lack automate...
    Rule Medium Severity
  • SRG-OS-000228-GPOS-00088

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS SSH daemon must be configured with the Department of Defense (DoD) logon banner.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the publicly accessible operating system en...
    Rule Medium Severity
  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS SSH daemon must be configured to only use the SSHv2 protocol.

    &lt;VulnDiscussion&gt;In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e....
    Rule High Severity
  • SRG-OS-000033-GPOS-00014

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS SSH daemon must be configured to use a FIPS 140-2 compliant cryptographic algorithm.

    &lt;VulnDiscussion&gt;Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote...
    Rule High Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS permission bits and user audit bits for HFS objects that are part of the Syslog daemon component must be configured properly.

    &lt;VulnDiscussion&gt;HFS directories and files of the Syslog daemon provide the configuration and executable properties of this product. Failure t...
    Rule Medium Severity
  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS Syslog daemon must be started at z/OS initialization.

    &lt;VulnDiscussion&gt;To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to pre...
    Rule Medium Severity
  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS Syslog daemon must be properly defined and secured.

    &lt;VulnDiscussion&gt;The Syslog daemon, known as syslogd, is a zOS UNIX daemon that provides a central processing point for log messages issued by...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS DFSMS resource class(es) must be defined to the GSO CLASMAP record in accordance with security requirements.

    &lt;VulnDiscussion&gt;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 DFSMS Program Resources must be properly defined and protected.

    &lt;VulnDiscussion&gt;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 DFSMS control data sets must be protected in accordance with security requirements.

    &lt;VulnDiscussion&gt;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 DFMSM resource class(es)must be defined to the GSO SAFDEF record in accordance with security requirements.

    &lt;VulnDiscussion&gt;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 DFSMS resources must be protected in accordance with the proper security requirements.

    &lt;VulnDiscussion&gt;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 using DFSMS must properly specify SYS(x).PARMLIB(IGDSMSxx), SMS parameter settings.

    &lt;VulnDiscussion&gt;Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...
    Rule Medium Severity
  • SRG-OS-000032-GPOS-00013

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS PROFILE.TCPIP configuration statements for the TCP/IP stack must be coded properly.

    &lt;VulnDiscussion&gt;Remote access services, such as those providing remote access to network devices and information systems, which lack automate...
    Rule Medium Severity
  • SRG-OS-000297-GPOS-00115

    <GroupDescription></GroupDescription>
    Group
  • IBM z//OS must be configured to restrict all TCP/IP ports to ports, protocols, and/or services as defined in the PPSM CAL and vulnerability assessments.

    &lt;VulnDiscussion&gt;Remote access services, such as those providing remote access to network devices and information systems, which lack automate...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS TCP/IP resources must be properly protected.

    &lt;VulnDiscussion&gt;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 permission bits and user audit bits for HFS objects that are part of the Base TCP/IP component must be configured properly.

    &lt;VulnDiscussion&gt;To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...
    Rule Medium Severity

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