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General Purpose Operating System Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • The operating system must accept Personal Identity Verification (PIV) credentials.

    <VulnDiscussion>The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access. DoD has mandated the use...
    Rule Medium Severity
    Show

  • SRG-OS-000377

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must electronically verify Personal Identity Verification (PIV) credentials.

    &lt;VulnDiscussion&gt;The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access. DoD has mandated the use...
    Rule Medium Severity
    Show

  • SRG-OS-000378

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must authenticate peripherals before establishing a connection.

    &lt;VulnDiscussion&gt;Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. ...
    Rule Medium Severity
    Show

  • SRG-OS-000379

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must produce audit records containing the individual identities of group account users.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
    Show

  • SRG-OS-000046

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000078

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000104

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000279

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files.

    &lt;VulnDiscussion&gt;Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary acce...
    Rule Medium Severity
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  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must not allow an unattended or automatic logon to the system.

    &lt;VulnDiscussion&gt;Failure to restrict system access to authenticated users negatively impacts operating system security.&lt;/VulnDiscussion&gt;...
    Rule High Severity
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  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000366

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000021

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000023

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000038

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000070

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must limit the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders.

    &lt;VulnDiscussion&gt;Users' home directories/folders may contain information of a sensitive nature. Non-privileged users should coordinate any sha...
    Rule Medium Severity
    Show

  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must enable an application firewall, if available.

    &lt;VulnDiscussion&gt;Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls ...
    Rule Medium Severity
    Show

  • SRG-OS-000481

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000002

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000004

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • 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
    Show

  • SRG-OS-000024

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000027

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000028

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000029

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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>
    Group
    Show

  • 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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  • SRG-OS-000031

    <GroupDescription></GroupDescription>
    Group
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  • The operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image.

    &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-000032

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must monitor remote access methods.

    &lt;VulnDiscussion&gt;Remote access services, such as those providing remote access to network devices and information systems, which lack automate...
    Rule Medium Severity
    Show

  • SRG-OS-000033

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must implement DoD-approved encryption to protect the confidentiality of remote access sessions.

    &lt;VulnDiscussion&gt;Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote...
    Rule High Severity
    Show

  • SRG-OS-000037

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must produce audit records containing information to establish what type of events occurred.

    &lt;VulnDiscussion&gt;Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events ...
    Rule Medium Severity
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  • The operating system must produce audit records containing information to establish when (date and time) the events occurred.

    &lt;VulnDiscussion&gt;Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to...
    Rule Medium Severity
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  • SRG-OS-000039

    <GroupDescription></GroupDescription>
    Group
    Show

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