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Rules and Groups employed by this XCCDF Profile

  • SRG-NET-000512-ALG-000062

    <GroupDescription></GroupDescription>
    Group
  • The ALG must be configured in accordance with the security configuration settings based on DoD security policy and technology-specific security best practices.

    &lt;VulnDiscussion&gt;Configuring the network element to implement organization-wide security implementation guides and security checklists ensures...
    Rule Medium Severity
  • SRG-NET-000512-ALG-000064

    <GroupDescription></GroupDescription>
    Group
  • The ALG that provides intermediary services for SMTP must inspect inbound and outbound SMTP and Extended SMTP communications traffic for protocol compliance and protocol anomalies.

    &lt;VulnDiscussion&gt;Application protocol anomaly detection examines application layer protocols such as SMTP to identify attacks based on observe...
    Rule Medium Severity
  • SRG-NET-000512-ALG-000065

    <GroupDescription></GroupDescription>
    Group
  • The ALG that intermediary services for FTP must inspect inbound and outbound FTP communications traffic for protocol compliance and protocol anomalies.

    &lt;VulnDiscussion&gt;Application protocol anomaly detection examines application layer protocols such as FTP to identify attacks based on observed...
    Rule Medium Severity
  • SRG-NET-000512-ALG-000066

    <GroupDescription></GroupDescription>
    Group
  • The ALG that provides intermediary services for HTTP must inspect inbound and outbound HTTP traffic for protocol compliance and protocol anomalies.

    &lt;VulnDiscussion&gt;Application protocol anomaly detection examines application layer protocols such as HTTP to identify attacks based on observe...
    Rule Medium Severity
  • SRG-NET-000323-ALG-000067

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must use source and destination security attributes associated with organization-defined information, source, and/or destination objects to enforce organization-defined information flow control policies as a basis for flow control decisions.

    &lt;VulnDiscussion&gt;If information flow is not enforced based on approved authorizations, the system may become compromised. A mechanism to dete...
    Rule Medium Severity
  • SRG-NET-000021-ALG-000068

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must allow privileged administrators to enable/disable all security policy filters used to enforce information flow control.

    &lt;VulnDiscussion&gt;A crucial part of any information flow control solution is the ability to enable and disable policy filters in order to respo...
    Rule Medium Severity
  • SRG-NET-000022-ALG-000069

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must allow privileged administrators to configure and make changes to all security policy filters that are used to enforce information flow control.

    &lt;VulnDiscussion&gt;The use of security policy filters provides protection for the confidentiality of data by restricting the flow of data. The c...
    Rule Medium Severity
  • SRG-NET-000324-ALG-000070

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS, when transferring information between different security domains, must use organization-defined data type identifiers to validate data essential for information flow decisions.

    &lt;VulnDiscussion&gt;Information flow decisions based on invalid data may allow unintended and unauthorized data flows, and therefore risk the con...
    Rule Medium Severity
  • SRG-NET-000282-ALG-000071

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must decompose information into organization-defined, policy-relevant subcomponents for submission to policy enforcement mechanisms before transferring information between different security domains.

    &lt;VulnDiscussion&gt;Policy enforcement mechanisms apply filtering, inspection, and/or sanitization rules to the policy-relevant subcomponents of ...
    Rule Medium Severity
  • SRG-NET-000283-ALG-000072

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS, when transferring information between different security domains, must implement organization-defined security policy filters requiring fully enumerated formats that restrict data structure and content.

    &lt;VulnDiscussion&gt;Data structure and content restrictions reduce the range of potential malicious and/or unsanctioned content in cross-domain t...
    Rule Medium Severity
  • SRG-NET-000284-ALG-000073

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS, when transferring information between different security domains, must examine the information for the presence of organization-defined unsanctioned information.

    &lt;VulnDiscussion&gt;Without the capability to examine information, there is no means to determine the presence of information not authorized for ...
    Rule Medium Severity
  • SRG-NET-000285-ALG-000074

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must prohibit the transfer of unsanctioned information in accordance with the security policy when transferring information between different security domains.

    &lt;VulnDiscussion&gt;The ability to prohibit information transfer is fundamentally necessary to prevent unintended and unauthorized data flows. Fa...
    Rule Medium Severity
  • SRG-NET-000325-ALG-000075

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must uniquely identify and authenticate source by organization, system, application, and/or individual for information transfer.

    &lt;VulnDiscussion&gt;Attribution is a critical component of a security concept of operations. The ability to identify source and destination point...
    Rule Medium Severity
  • SRG-NET-000326-ALG-000076

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must uniquely identify and authenticate destination by organization, system, application, and/or individual for information transfer.

    &lt;VulnDiscussion&gt;Attribution is a critical component of a security concept of operations. The ability to identify source and destination point...
    Rule Medium Severity
  • SRG-NET-000327-ALG-000077

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must bind security attributes to information using organization-defined binding techniques to facilitate information flow policy enforcement.

    &lt;VulnDiscussion&gt;If security attributes are not associated with the information being transmitted between systems, then access control policie...
    Rule Medium Severity
  • SRG-NET-000328-ALG-000078

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS, when transferring information between different security domains, must apply the same security policy filtering to metadata as it applies to data payloads.

    &lt;VulnDiscussion&gt;Subjecting metadata to the same filtering and inspection policies as payload data helps to mitigate the risk of data compromi...
    Rule Medium Severity
  • SRG-NET-000029-ALG-000079

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must enforce dynamic traffic flow control based on organization-defined policies.

    &lt;VulnDiscussion&gt;Information flow policies regarding dynamic information flow control include allowing or disallowing information flows based ...
    Rule Medium Severity
  • SRG-NET-000280-ALG-000080

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must enforce information flow control based on organization-defined metadata.

    &lt;VulnDiscussion&gt;Enforcing allowed information flows based on metadata enables simpler and more effective flow control. Metadata is informatio...
    Rule Medium Severity
  • SRG-NET-000280-ALG-000081

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must block the transfer of data with malformed security attribute metadata structures.

    &lt;VulnDiscussion&gt;Enforcing allowed information flows based on metadata enables simpler and more effective flow control. Metadata is informatio...
    Rule Medium Severity
  • SRG-NET-000032-ALG-000082

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must enforce organization-defined one-way information flows using hardware mechanisms.

    &lt;VulnDiscussion&gt;Information flow control regulates where information is allowed to travel within a network and between interconnected network...
    Rule Medium Severity
  • SRG-NET-000033-ALG-000083

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must enforce information flow control using organization-defined security policy filters as a basis for flow control decisions for organization-defined information flows.

    &lt;VulnDiscussion&gt;The use of security policy filters provides protection for the confidentiality of data by restricting the flow of data. Conf...
    Rule Medium Severity
  • SRG-NET-000329-ALG-000084

    <GroupDescription></GroupDescription>
    Group
  • The ALG that is part of a CDS must enforce the use of human reviews for organization-defined information flows under organization-defined conditions.

    &lt;VulnDiscussion&gt;Without network element enforcement of human reviews, security policy filters may have false positives and false negatives in...
    Rule Medium Severity
  • SRG-NET-000131-ALG-000085

    <GroupDescription></GroupDescription>
    Group
  • The ALG must not have unnecessary services and functions enabled.

    &lt;VulnDiscussion&gt;Information systems are capable of providing a wide variety of functions (capabilities or processes) and services. Some of th...
    Rule Medium Severity
  • SRG-NET-000131-ALG-000086

    <GroupDescription></GroupDescription>
    Group
  • The ALG must be configured to remove or disable unrelated or unneeded application proxy services.

    &lt;VulnDiscussion&gt;Unrelated or unneeded proxy services increase the attack vector and add excessive complexity to the securing of the ALG. Mult...
    Rule Medium Severity
  • SRG-NET-000132-ALG-000087

    <GroupDescription></GroupDescription>
    Group
  • The ALG must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.

    &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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