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General Purpose Operating System Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000001

    <GroupDescription></GroupDescription>
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  • The operating system must provide automated mechanisms for supporting account management functions.

    &lt;VulnDiscussion&gt;Enterprise environments make account management challenging and complex. A manual process for account management functions ad...
    Rule Medium Severity
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  • SRG-OS-000002

    <GroupDescription></GroupDescription>
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  • The operating system must 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-000004

    <GroupDescription></GroupDescription>
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  • The operating system must audit all account creations.

    &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-000021

    <GroupDescription></GroupDescription>
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  • The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.

    &lt;VulnDiscussion&gt;By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...
    Rule Medium Severity
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  • SRG-OS-000023

    <GroupDescription></GroupDescription>
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  • The operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system.

    &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-000024

    <GroupDescription></GroupDescription>
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  • The operating system must display the Standard Mandatory DoD Notice and Consent Banner until users acknowledge the usage conditions and take explicit actions to log on for further access.

    &lt;VulnDiscussion&gt;The banner must be acknowledged by the user prior to allowing the user access to the operating system. This provides assuranc...
    Rule Medium Severity
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  • SRG-OS-000027

    <GroupDescription></GroupDescription>
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  • The operating system must limit the number of concurrent sessions to ten for all accounts and/or account types.

    &lt;VulnDiscussion&gt;Operating system management includes the ability to control the number of users and user sessions that utilize an operating s...
    Rule Low Severity
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  • SRG-OS-000028

    <GroupDescription></GroupDescription>
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  • The operating system must retain a users session lock until that user reestablishes access using established identification and authentication procedures.

    &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-000029

    <GroupDescription></GroupDescription>
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  • The operating system must initiate a session lock after a 15-minute period of inactivity for all connection types.

    &lt;VulnDiscussion&gt;A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinit...
    Rule Medium Severity
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  • SRG-OS-000030

    <GroupDescription></GroupDescription>
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  • The operating system must provide the capability 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
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