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IBM z/OS ACF2 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • IBM z/OS LOGONIDs with the AUDIT or CONSULT attribute must be properly scoped.

    &lt;VulnDiscussion&gt;The use of security policy filters provides protection for the confidentiality of data by restricting the flow of data. A cru...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • IBM z/OS LOGONID with the ACCTPRIV attribute must be restricted to the ISSO.

    &lt;VulnDiscussion&gt;The use of security policy filters provides protection for the confidentiality of data by restricting the flow of data. A cru...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

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  • IBM z/OS batch jobs with restricted ACF2 LOGONIDs must have the PGM(xxxxxxxx) and SUBAUTH attributes or the SOURCE(xxxxxxxx) attribute assigned to the corresponding LOGONIDs.

    &lt;VulnDiscussion&gt;Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • CA-ACF2 RULEOPTS GSO record values must be set to the values specified.

    &lt;VulnDiscussion&gt;Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The CA-ACF2 GSO OPTS record value 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
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  • SRG-OS-000480-GPOS-00225

    <GroupDescription></GroupDescription>
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  • CA-ACF2 must prevent the use of dictionary words for passwords.

    &lt;VulnDiscussion&gt;If the operating system allows the user to select passwords based on dictionary words, then this increases the chances of pas...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • CA-ACF2 database must be on a separate physical volume from its backup and recovery data sets.

    &lt;VulnDiscussion&gt;Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • CA-ACF2 database must be backed up on a scheduled basis.

    &lt;VulnDiscussion&gt;Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • ACF2 REFRESH attribute must be restricted to security administrators' LOGON ID only.

    &lt;VulnDiscussion&gt;Users with the refresh attribute have the ability to effect changes to ESM global system options. Unauthorized use could resu...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • ACF2 maintenance LOGONIDs must have corresponding GSO MAINT records.

    &lt;VulnDiscussion&gt;Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • ACF2 LOGONIDs with the NON-CNCL attribute specified in the associated LOGONID record must be listed as trusted and must be specifically approved.

    &lt;VulnDiscussion&gt;Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • ACF2 LOGONIDs with the ACCOUNT, LEADER, or SECURITY attribute must be properly scoped.

    &lt;VulnDiscussion&gt;Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • ACF2 LOGONIDs associated with started tasks that have the MUSASS attribute and the requirement to submit jobs on behalf of its users must have the JOBFROM attribute as required.

    &lt;VulnDiscussion&gt;Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • IBM z/OS Started Tasks must be properly identified and defined to ACF2.

    &lt;VulnDiscussion&gt;Started procedures have system generated job statements that do not contain the user, group, or password statements. To enabl...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • ACF2 emergency LOGONIDS with the REFRESH attribute must have the SUSPEND attribute specified.

    &lt;VulnDiscussion&gt;Activity under unusual conditions can indicate hostile activity. For example, what is normal activity during business hours c...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • ACF2 BACKUP GSO record must be defined with a TIME value specifies greater than 00 unless the database is shared and backed up on another system.

    &lt;VulnDiscussion&gt;Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • ACF2 APPLDEF GSO record if used must have supporting documentation indicating the reason it was used.

    &lt;VulnDiscussion&gt;Failure to restrict network connectivity only to authorized systems permits inbound connections from malicious systems. It al...
    Rule Low Severity
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  • SRG-OS-000368-GPOS-00154

    <GroupDescription></GroupDescription>
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  • ACF2 MAINT GSO record value if specified must be restricted to production storage management user.

    &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-000368-GPOS-00154

    <GroupDescription></GroupDescription>
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  • ACF2 LINKLST GSO record if specified must only contains trusted system data sets.

    &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

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  • IBM z/OS must properly protect MCS console userid(s).

    &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-000096-GPOS-00050

    <GroupDescription></GroupDescription>
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  • ACF2 BLPPGM GSO record must not be defined.

    &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

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  • IBM z/OS UID(0) must be properly assigned.

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

    <GroupDescription></GroupDescription>
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  • IBM z/OS user account for the UNIX kernel (OMVS) must be properly defined to the security database.

    &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>
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  • IBM z/OS user account for the UNIX (RMFGAT) must be properly defined.

    &lt;VulnDiscussion&gt;To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to pre...
    Rule Medium Severity
    Show

  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
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  • ACF2 LOGONIDs must be defined with the required fields completed.

    &lt;VulnDiscussion&gt;To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to pre...
    Rule Medium Severity
    Show

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