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IBM z/OS RACF Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

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

    <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-000033-GPOS-00014

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • The IBM RACF SSH daemon must be configured to use a FIPS 140-2 compliant cryptographic algorithm to protect confidential information and remote access sessions.

    &lt;VulnDiscussion&gt;Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. Cryptographic ...
    Rule High Severity
  • SRG-OS-000228-GPOS-00088

    <GroupDescription></GroupDescription>
    Group
  • The SSH daemon must be configured with the Standard Mandatory DoD Notice and Consent 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-000068-GPOS-00036

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS, for PKI-based authentication, must use the ICSF or ESM for key management.

    &lt;VulnDiscussion&gt;Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the indivi...
    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 Syslog daemon component must be properly configured.

    &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-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The 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
  • The 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 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
  • IBM z/OS DFSMS-related RACF classes must be active.

    &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 Configuration files for the TCP/IP stack must be properly specified.

    &lt;VulnDiscussion&gt;Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...
    Rule Medium Severity
  • SRG-OS-000033-GPOS-00014

    <GroupDescription></GroupDescription>
    Group
  • The IBM RACF classes required to properly secure the z/OS UNIX environment must be ACTIVE.

    &lt;VulnDiscussion&gt;In certain situations, software applications/programs need to execute with elevated privileges to perform required functions....
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <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 permission bits and user audit bits for HFS objects that are part of the Base TCP/IP component must be properly configured.

    &lt;VulnDiscussion&gt;HFS directories and files of the Base TCP/IP component provide the configuration, operational, and executable properties of I...
    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
  • The IBM RACF SERVAUTH resource class must be active for TCP/IP resources.

    &lt;VulnDiscussion&gt;IBM Provides the SERVAUTH Class for use in protecting a variety of TCP/IP features/functions/products both IBM and third-part...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS data sets for the Base TCP/IP component must be properly protected.

    &lt;VulnDiscussion&gt;MVS data sets of the Base TCP/IP component provide the configuration, operational, and executable properties of IBMs TCP/IP s...
    Rule Medium Severity
  • SRG-OS-000324-GPOS-00125

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS SSL encryption options for the TN3270 Telnet Server must be specified properly for each statement that defines a SECUREPORT or within the TELNETGLOBALS.

    &lt;VulnDiscussion&gt;During the SSL connection process a mutually acceptable encryption algorithm is selected by the server and client. This algor...
    Rule Medium Severity
  • SRG-OS-000228-GPOS-00088

    <GroupDescription></GroupDescription>
    Group
  • The IBM z/OS warning banner for the TN3270 Telnet server must contain the proper content of the Standard Mandatory DoD Notice and Consent Banner.

    &lt;VulnDiscussion&gt;System use notifications are required only for access via logon interfaces with human users and are not required when such hu...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • IBM z/OS VTAM session setup controls for the TN3270 Telnet server must be properly specified.

    &lt;VulnDiscussion&gt;Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...
    Rule Medium Severity
  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
  • The IBM z/OS PROFILE.TCPIP configuration for the TN3270 Telnet server must have the INACTIVE statement properly specified.

    &lt;VulnDiscussion&gt;Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take c...
    Rule Medium Severity

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