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General Purpose Operating System Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • The operating system must produce audit records containing information to establish where the events occurred.

    <VulnDiscussion>Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events leading up t...
    Rule Medium Severity
    Show

  • SRG-OS-000040

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must produce audit records containing information to establish the source of the events.

    &lt;VulnDiscussion&gt;Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up...
    Rule Medium Severity
    Show

  • SRG-OS-000041

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must produce audit records containing information to establish the outcome of the events.

    &lt;VulnDiscussion&gt;Without information about the outcome of events, security personnel cannot make an accurate assessment as to whether an attac...
    Rule Medium Severity
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  • SRG-OS-000042

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must generate audit records containing the full-text recording of privileged commands.

    &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-000042

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must alert the ISSO and SA (at a minimum) in the event of an audit processing failure.

    &lt;VulnDiscussion&gt;It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....
    Rule Medium Severity
    Show

  • SRG-OS-000047

    <GroupDescription></GroupDescription>
    Group
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  • The operating system must shut down by default upon audit failure (unless availability is an overriding concern).

    &lt;VulnDiscussion&gt;It is critical that when the operating system is at risk of failing to process audit logs as required, it takes action to mit...
    Rule Medium Severity
    Show

  • SRG-OS-000051

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must provide the capability to centrally review and analyze audit records from multiple components within the system.

    &lt;VulnDiscussion&gt;Successful incident response and auditing relies on timely, accurate system information and analysis in order to allow the or...
    Rule Medium Severity
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  • SRG-OS-000054

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must provide the capability to filter audit records for events of interest based upon all audit fields within audit records.

    &lt;VulnDiscussion&gt;The ability to specify the event criteria that are of interest provides the individuals reviewing the logs with the ability t...
    Rule Medium Severity
    Show

  • SRG-OS-000055

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must use internal system clocks to generate time stamps for audit records.

    &lt;VulnDiscussion&gt;Without an internal clock used as the reference for the time stored on each event to provide a trusted common reference for t...
    Rule Medium Severity
    Show

  • SRG-OS-000057

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must protect audit information from unauthorized read access.

    &lt;VulnDiscussion&gt;Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confide...
    Rule Medium Severity
    Show

  • SRG-OS-000058

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must protect audit information from unauthorized modification.

    &lt;VulnDiscussion&gt;If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malic...
    Rule Medium Severity
    Show

  • SRG-OS-000059

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must protect audit information from unauthorized deletion.

    &lt;VulnDiscussion&gt;If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malic...
    Rule Medium Severity
    Show

  • SRG-OS-000062

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components.

    &lt;VulnDiscussion&gt;Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events r...
    Rule Medium Severity
    Show

  • SRG-OS-000063

    <GroupDescription></GroupDescription>
    Group
    Show

  • Operating systems must enforce a 60-day maximum password lifetime restriction.

    &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
    Show

  • The operating system must allow only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited.

    &lt;VulnDiscussion&gt;Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel ma...
    Rule Medium Severity
    Show

  • SRG-OS-000064

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur.

    &lt;VulnDiscussion&gt;Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...
    Rule Medium Severity
    Show

  • SRG-OS-000066

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor.

    &lt;VulnDiscussion&gt;Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate n...
    Rule Medium Severity
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  • SRG-OS-000067

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system, for PKI-based authentication, must enforce authorized access to the corresponding private key.

    &lt;VulnDiscussion&gt; If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the n...
    Rule Medium Severity
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  • SRG-OS-000068

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must map the authenticated identity to the user or group account for PKI-based authentication.

    &lt;VulnDiscussion&gt;Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the indivi...
    Rule Medium Severity
    Show

  • SRG-OS-000069

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must enforce password complexity by requiring that at least one uppercase character be used.

    &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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  • The operating system must enforce password complexity by requiring that at least one lowercase character be used.

    &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
    Show

  • SRG-OS-000071

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must enforce password complexity by requiring that at least one numeric character be used.

    &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
    Show

  • SRG-OS-000072

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must require the change of at least 50 percent of the total number of characters when passwords are changed.

    &lt;VulnDiscussion&gt; If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances o...
    Rule Medium Severity
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  • SRG-OS-000073

    <GroupDescription></GroupDescription>
    Group
    Show

  • The operating system must store only encrypted representations of passwords.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule High Severity
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  • SRG-OS-000074

    <GroupDescription></GroupDescription>
    Group
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  • The operating system must transmit only encrypted representations of passwords.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule High Severity
    Show

  • SRG-OS-000075

    <GroupDescription></GroupDescription>
    Group
    Show

  • Operating systems must enforce 24 hours/1 day as the minimum password lifetime.

    &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

    <GroupDescription></GroupDescription>
    Group
    Show

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