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IBM z/OS RACF Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
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  • The IBM RACF Automatic Data Set Protection (ADSP) SETROPTS value must be set to NOADSP.

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

    <GroupDescription></GroupDescription>
    Group
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  • IBM RACF user accounts must uniquely identify system users.

    &lt;VulnDiscussion&gt;To assure individual accountability and prevent unauthorized access, organizational users must be individually identified and...
    Rule Medium Severity
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  • SRG-OS-000118-GPOS-00060

    <GroupDescription></GroupDescription>
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  • The IBM RACF INACTIVE SETROPTS value must be set to 35 days.

    &lt;VulnDiscussion&gt;Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potenti...
    Rule Medium Severity
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  • SRG-OS-000069-GPOS-00037

    <GroupDescription></GroupDescription>
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  • IBM RACF PASSWORD(RULEn) SETROPTS value(s) must be properly set.

    &lt;VulnDiscussion&gt;The shorter the password, the lower the number of possible combinations that need to be tested before the password is comprom...
    Rule Medium Severity
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  • SRG-OS-000070-GPOS-00038

    <GroupDescription></GroupDescription>
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  • IBM RACF exit ICHPWX01 must be installed and properly configured.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...
    Rule Medium Severity
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  • SRG-OS-000075-GPOS-00043

    <GroupDescription></GroupDescription>
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  • The IBM RACF SETROPTS PASSWORD(MINCHANGE) value must be set to 1.

    &lt;VulnDiscussion&gt;Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enfo...
    Rule Medium Severity
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  • SRG-OS-000076-GPOS-00044

    <GroupDescription></GroupDescription>
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  • IBM RACF SETROPTS PASSWORD(INTERVAL) must be set to 60 days.

    &lt;VulnDiscussion&gt;Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the ...
    Rule Medium Severity
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  • The IBM RACF PASSWORD(HISTORY) SETROPTS value must be set to five or more.

    &lt;VulnDiscussion&gt;Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...
    Rule Medium Severity
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  • NIST FIPS-validated cryptography must be used to protect passwords in the security database.

    &lt;VulnDiscussion&gt;Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the pass...
    Rule High Severity
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  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
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  • The IBM RACF ERASE ALL SETROPTS value must be set to ERASE(ALL) on all systems.

    &lt;VulnDiscussion&gt;Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of infor...
    Rule Medium Severity
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
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  • IBM RACF DASD Management USERIDs must be properly controlled.

    &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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  • SRG-OS-000032-GPOS-00013

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

    &lt;VulnDiscussion&gt;The FTP Server can provide audit data in the form of SMF records. The SMF data produced by the FTP Server provides transactio...
    Rule Medium Severity
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
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  • IBM RACF permission bits and user audit bits for HFS objects that are part of the FTP server component must be properly configured.

    &lt;VulnDiscussion&gt;MVS data sets of the FTP Server provide the configuration and operational characteristics of this product. Failure to properl...
    Rule Medium Severity
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
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  • IBM z/OS FTP.DATA configuration statements must indicate a BANNER statement with the proper content.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the operating system ensures privacy and se...
    Rule Medium Severity
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  • SRG-OS-000228-GPOS-00088

    <GroupDescription></GroupDescription>
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  • IBM z/OS FTP.DATA configuration statements for the FTP server must specify the BANNER statement.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the publicly accessible operating system en...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • IBM z/OS FTP.DATA configuration statements for the FTP Server must be specified in accordance with requirements.

    &lt;VulnDiscussion&gt;This requirement is intended to cover both traditional interactive logons to information systems and general accesses to info...
    Rule Medium Severity
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  • SRG-OS-000368-GPOS-00154

    <GroupDescription></GroupDescription>
    Group
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  • The IBM z/OS TFTP server program must be properly protected.

    &lt;VulnDiscussion&gt;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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  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
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  • IBM z/OS user exits for the FTP server must not be used without proper approval and documentation.

    &lt;VulnDiscussion&gt;In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e....
    Rule Medium Severity
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  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
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  • The IBM z/OS FTP server daemon must be defined with proper security parameters.

    &lt;VulnDiscussion&gt;The FTP Server daemon requires special privileges and access to sensitive resources to provide its system services. Failure t...
    Rule Medium Severity
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  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
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  • IBM FTP.DATA configuration for the FTP server must have the INACTIVE statement properly set.

    &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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  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
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  • IBM z/OS startup parameters for the FTP server must have the INACTIVE statement properly set.

    &lt;VulnDiscussion&gt;To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing...
    Rule Medium Severity
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
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  • IBM z/OS RJE workstations and NJE nodes must be defined to the FACILITY resource class.

    &lt;VulnDiscussion&gt;Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforceme...
    Rule Medium Severity
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
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  • IBM z/OS JES2 input sources must be controlled 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
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
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  • IBM z/OS JES2 input sources must be properly controlled.

    &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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  • SRG-OS-000080-GPOS-00048

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  • IBM z/OS JES2 output devices must be controlled 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
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
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  • IBM z/OS JES2 output devices must be properly controlled for classified systems.

    &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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