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IBM z/OS ACF2 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000029-GPOS-00010

    <GroupDescription></GroupDescription>
    Group
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  • IBM z/OS must employ a session manager to manage session lock after a 15-minute period of inactivity.

    &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
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  • SRG-OS-000002-GPOS-00002

    <GroupDescription></GroupDescription>
    Group
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  • IBM z/OS System Administrator 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
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  • SRG-OS-000123-GPOS-00064

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000304-GPOS-00121

    <GroupDescription></GroupDescription>
    Group
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  • IBM z/OS system administrator must develop a procedure to notify system administrators and 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
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  • SRG-OS-000126-GPOS-00066

    <GroupDescription></GroupDescription>
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  • IBM z/OS system administrator must develop a procedure to terminate all sessions and network connections related to nonlocal maintenance when nonlocal maintenance is completed.

    &lt;VulnDiscussion&gt;If a maintenance session or connection remains open after maintenance is completed, it may be hijacked by an attacker and use...
    Rule Medium Severity
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  • SRG-OS-000437-GPOS-00194

    <GroupDescription></GroupDescription>
    Group
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  • 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
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  • SRG-OS-000447-GPOS-00201

    <GroupDescription></GroupDescription>
    Group
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  • 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
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  • SRG-OS-000030-GPOS-00011

    <GroupDescription></GroupDescription>
    Group
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  • 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
    Show

  • SRG-OS-000118-GPOS-00060

    <GroupDescription></GroupDescription>
    Group
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  • 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
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  • SRG-OS-000479-GPOS-00224

    <GroupDescription></GroupDescription>
    Group
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  • 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
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