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I - Mission Critical Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-NET-000015-ALG-000016

    <GroupDescription></GroupDescription>
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  • The Sentry must enforce approved authorizations for logical access to information and system resources by enabling identity-based, role-based, and/or attribute-based security policies. These controls are enabled in MobileIron UEM (MobileIron Core) and applied by the Sentry for conditional access enforcement.

    &lt;VulnDiscussion&gt;Successful authentication through Sentry must not automatically give an entity access to resources behind Sentry. The lack of...
    Rule Medium Severity
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  • SRG-NET-000018-ALG-000017

    <GroupDescription></GroupDescription>
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  • The Sentry must enforce approved authorizations for controlling the flow of information within the network based on attribute-based inspection of the source, destination, and headers, of the communications traffic.

    &lt;VulnDiscussion&gt;Information flow control regulates where information is allowed to travel within a network. The flow of all network traffic m...
    Rule Medium Severity
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  • SRG-NET-000019-ALG-000018

    <GroupDescription></GroupDescription>
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  • The Sentry must restrict or block harmful or suspicious communications traffic by controlling the flow of information between interconnected networks based on attribute- and content-based inspection of the source, destination, headers, and/or content of the communications traffic.

    &lt;VulnDiscussion&gt;Information flow control regulates where information is allowed to travel within a network and between interconnected network...
    Rule Medium Severity
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  • SRG-NET-000062-ALG-000011

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  • The Sentry providing intermediary services for remote access communications traffic must use encryption services that implement NIST FIPS-validated cryptography 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 Medium Severity
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  • SRG-NET-000062-ALG-000092

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  • If Sentry stores secret or private keys, it must use FIPS-approved key management technology and processes in the production and control of private/secret cryptographic keys.

    &lt;VulnDiscussion&gt;Private key data is used to prove that the entity presenting a public key certificate is the certificate's rightful owner. Co...
    Rule Medium Severity
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  • SRG-NET-000062-ALG-000150

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  • The Sentry that provides intermediary services for TLS must be configured to comply with the required TLS settings in NIST SP 800-52.

    &lt;VulnDiscussion&gt;SP 800-52 provides guidance on using the most secure version and configuration of the TLS/SSL protocol. Using older unauthori...
    Rule Medium Severity
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  • SRG-NET-000063-ALG-000012

    <GroupDescription></GroupDescription>
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  • The Sentry providing intermediary services for remote access communications traffic must use NIST FIPS-validated cryptography to protect the integrity of remote access sessions.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote acce...
    Rule Medium Severity
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  • SRG-NET-000074-ALG-000043

    <GroupDescription></GroupDescription>
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  • The Sentry must produce audit records containing information to establish what type of events occurred.

    &lt;VulnDiscussion&gt;Without establishing what type of event occurred, it would be difficult to establish, correlate, and investigate the events l...
    Rule Low Severity
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  • SRG-NET-000075-ALG-000044

    <GroupDescription></GroupDescription>
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  • The Sentry 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 Low Severity
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  • SRG-NET-000076-ALG-000045

    <GroupDescription></GroupDescription>
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  • The Sentry must produce audit records containing information to establish where the events occurred.

    &lt;VulnDiscussion&gt;Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events leading up t...
    Rule Low Severity
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  • SRG-NET-000077-ALG-000046

    <GroupDescription></GroupDescription>
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  • The Sentry must produce audit records containing information to establish the source of the events.

    &lt;VulnDiscussion&gt;Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using a...
    Rule Low Severity
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  • SRG-NET-000078-ALG-000047

    <GroupDescription></GroupDescription>
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  • The Sentry 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 Low Severity
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  • SRG-NET-000079-ALG-000048

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  • The Sentry must generate audit records containing information to establish the identity of any individual or process associated with the event.

    &lt;VulnDiscussion&gt;Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associ...
    Rule Low Severity
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  • SRG-NET-000088-ALG-000054

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  • The Sentry must send an alert to, at a minimum, the ISSO and SCA when an audit processing failure occurs.

    &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 Low Severity
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  • SRG-NET-000132-ALG-000087

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  • The Sentry 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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  • SRG-NET-000138-ALG-000088

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  • The Sentry providing mobile device access control intermediary services must be configured with a pre-established trust relationship and mechanisms with appropriate authorities (e.g., Active Directory or AAA server) which validate mobile device account access authorizations and privileges.

    &lt;VulnDiscussion&gt;User account and privilege validation must be centralized in order to prevent unauthorized access using changed or revoked pr...
    Rule Medium Severity
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  • SRG-NET-000138-ALG-000089

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  • The Sentry providing mobile device authentication intermediary services must restrict mobile device authentication traffic to specific authentication server(s).

    &lt;VulnDiscussion&gt;User authentication can be used as part of the policy filtering rule sets. Some URLs or network resources can be restricted t...
    Rule Medium Severity
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  • SRG-NET-000140-ALG-000094

    <GroupDescription></GroupDescription>
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  • The Sentry providing mobile device authentication intermediary services must use multifactor authentication for network access to non-privileged accounts.

    &lt;VulnDiscussion&gt;To ensure accountability and prevent unauthenticated access, non-privileged users must utilize multifactor authentication to ...
    Rule Medium Severity
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  • SRG-NET-000147-ALG-000095

    <GroupDescription></GroupDescription>
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  • The Sentry providing mobile device authentication intermediary services must implement replay-resistant authentication mechanisms for network access to non-privileged accounts.

    &lt;VulnDiscussion&gt;A replay attack may enable an unauthorized user to gain access to the application. Authentication sessions between the authen...
    Rule Medium Severity
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  • SRG-NET-000164-ALG-000100

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  • The Sentry that provides intermediary services for TLS must validate certificates used for TLS functions by performing RFC 5280-compliant certification path validation.

    &lt;VulnDiscussion&gt;A certificate's certification path is the path from the end entity certificate to a trusted root certification authority (CA)...
    Rule Medium Severity
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  • SRG-NET-000166-ALG-000101

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  • The Sentry providing PKI-based mobile device authentication intermediary services must map authenticated identities to the mobile device account.

    &lt;VulnDiscussion&gt;Authorization for access to any network element requires an approved and assigned individual account identifier. To ensure on...
    Rule Medium Severity
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  • SRG-NET-000213-ALG-000107

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  • The Sentry must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for mobile device sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity.

    &lt;VulnDiscussion&gt;Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take c...
    Rule Medium Severity
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  • SRG-NET-000334-ALG-000050

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  • The Sentry must offload audit records onto a centralized log server.

    &lt;VulnDiscussion&gt;Without the capability to select a user session to capture or view, investigations into suspicious or harmful events would be...
    Rule Low Severity
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  • SRG-NET-000339-ALG-000090

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  • The Sentry providing mobile device authentication intermediary services must implement multifactor authentication for remote access to non-privileged accounts such that one of the factors is provided by a device separate from the system gaining access.

    &lt;VulnDiscussion&gt;For remote access to non-privileged accounts, the purpose of requiring a device that is separate from the information system ...
    Rule Medium Severity
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  • SRG-NET-000355-ALG-000117

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  • The Sentry providing mobile device authentication intermediary services using PKI-based mobile device 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 they have security controls and identity vetting procedures in place ...
    Rule Medium Severity
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