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Application Layer Gateway (ALG) Security Requirements Guide (SRG)

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000234-ALG-000116

    <GroupDescription></GroupDescription>
    Group
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  • The ALG must generate unique session identifiers using a FIPS 140-2 approved random number generator.

    &lt;VulnDiscussion&gt;Sequentially generated session IDs can be easily guessed by an attacker. Employing the concept of randomness in the generatio...
    Rule Medium Severity
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  • SRG-NET-000355-ALG-000117

    <GroupDescription></GroupDescription>
    Group
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  • The ALG providing user authentication intermediary services using PKI-based user authentication must only accept end entity certificates issued by DoD PKI or DoD-approved PKI Certification Authorities (CAs) for the establishment of protected sessions.

    &lt;VulnDiscussion&gt;Non-DoD approved PKIs have not been evaluated to ensure that they have security controls and identity vetting procedures in p...
    Rule Medium Severity
    Show

  • SRG-NET-000236-ALG-000119

    <GroupDescription></GroupDescription>
    Group
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  • In the event of a system failure of the ALG function, the ALG must save diagnostic information, log system messages, and load the most current security policies, rules, and signatures when restarted.

    &lt;VulnDiscussion&gt;Failure in a secure state can address safety or security in accordance with the mission needs of the organization. Failure to...
    Rule Medium Severity
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  • SRG-NET-000362-ALG-000120

    <GroupDescription></GroupDescription>
    Group
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  • The ALG must implement load balancing to limit the effects of known and unknown types of Denial of Service (DoS) attacks.

    &lt;VulnDiscussion&gt;If the network does not provide safeguards against DoS attacks, network resources will be unavailable to users. Load balancin...
    Rule Medium Severity
    Show

  • SRG-NET-000362-ALG-000112

    <GroupDescription></GroupDescription>
    Group
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  • The ALG must only allow incoming communications from organization-defined authorized sources routed to organization-defined authorized destinations.

    &lt;VulnDiscussion&gt;Unrestricted traffic may contain malicious traffic which poses a threat to an enclave or to other connected networks. Additio...
    Rule Medium Severity
    Show

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