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I - Mission Critical Public

Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • The web server must not be a proxy server.

    &lt;VulnDiscussion&gt;A web server should be primarily a web server or a proxy server but not both, for the same reasons that other multi-use serve...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • The web server must provide install options to exclude the installation of documentation, sample code, example applications, and tutorials.

    &lt;VulnDiscussion&gt;Web server documentation, sample code, example applications, and tutorials may be an exploitable threat to a web server becau...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • Web server accounts not utilized by installed features (i.e., tools, utilities, specific services, etc.) must not be created and must be deleted when the web server feature is uninstalled.

    &lt;VulnDiscussion&gt;When accounts used for web server features such as documentation, sample code, example applications, tutorials, utilities, an...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • The web server must provide install options to exclude installation of utility programs, services, plug-ins, and modules not necessary for operation.

    &lt;VulnDiscussion&gt;Just as running unneeded services and protocols is a danger to the web server at the lower levels of the OSI model, running u...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • The web server must have Multipurpose Internet Mail Extensions (MIME) that invoke OS shell programs disabled.

    &lt;VulnDiscussion&gt;Controlling what a user of a hosted application can access is part of the security posture of the web server. Any time a user...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • The web server must allow the mappings to unused and vulnerable scripts to be removed.

    &lt;VulnDiscussion&gt;Scripts allow server side processing on behalf of the hosted application user or as processes needed in the implementation of...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • The web server must have resource mappings set to disable the serving of certain file types.

    &lt;VulnDiscussion&gt;Resource mapping is the process of tying a particular file type to a process in the web server that can serve that type of fi...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • The web server must have Web Distributed Authoring (WebDAV) disabled.

    &lt;VulnDiscussion&gt;A web server can be installed with functionality that, just by its nature, is not secure. Web Distributed Authoring (WebDAV) ...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • The web server must protect system resources and privileged operations from hosted applications.

    &lt;VulnDiscussion&gt;A web server may host one too many applications. Each application will need certain system resources and privileged operatio...
    Rule Medium Severity
  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
  • Users and scripts running on behalf of users must be contained to the document root or home directory tree of the web server.

    &lt;VulnDiscussion&gt;A web server is designed to deliver content and execute scripts or applications on the request of a client or user. Containi...
    Rule Medium Severity
  • SRG-APP-000142

    <GroupDescription></GroupDescription>
    Group
  • The web server must be configured to use a specified IP address and port.

    &lt;VulnDiscussion&gt;The web server must be configured to listen on a specified IP address and port. Without specifying an IP address and port fo...
    Rule Medium Severity
  • SRG-APP-000172

    <GroupDescription></GroupDescription>
    Group
  • The web server must encrypt passwords during transmission.

    &lt;VulnDiscussion&gt;Data used to authenticate, especially passwords, needs to be protected at all times, and encryption is the standard method fo...
    Rule Medium Severity
  • SRG-APP-000175

    <GroupDescription></GroupDescription>
    Group
  • The web server must perform 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
  • SRG-APP-000176

    <GroupDescription></GroupDescription>
    Group
  • Only authenticated system administrators or the designated PKI Sponsor for the web server must have access to the web servers private key.

    &lt;VulnDiscussion&gt;The web server's private key is used to prove the identity of the server to clients and securely exchange the shared secret k...
    Rule Medium Severity
  • SRG-APP-000179

    <GroupDescription></GroupDescription>
    Group
  • The web server must use cryptographic modules that meet the requirements of applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance when encrypting stored data.

    &lt;VulnDiscussion&gt;Encryption is only as good as the encryption modules utilized. Unapproved cryptographic module algorithms cannot be verified...
    Rule High Severity
  • SRG-APP-000179

    <GroupDescription></GroupDescription>
    Group
  • The web server must use cryptographic modules that meet the requirements of applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance for such authentication.

    &lt;VulnDiscussion&gt;Encryption is only as good as the encryption modules utilized. Unapproved cryptographic module algorithms cannot be verified ...
    Rule Medium Severity
  • SRG-APP-000206

    <GroupDescription></GroupDescription>
    Group
  • A web server utilizing mobile code must meet DoD-defined mobile code requirements.

    &lt;VulnDiscussion&gt;Mobile code in hosted applications allows the developer to add functionality and displays to hosted applications that are flu...
    Rule Medium Severity
  • SRG-APP-000211

    <GroupDescription></GroupDescription>
    Group
  • Web server accounts accessing the directory tree, the shell, or other operating system functions and utilities must only be administrative accounts.

    &lt;VulnDiscussion&gt;As a rule, accounts on a web server are to be kept to a minimum. Only administrators, web managers, developers, auditors, and...
    Rule Medium Severity
  • SRG-APP-000211

    <GroupDescription></GroupDescription>
    Group
  • Anonymous user access to the web server application directories must be prohibited.

    &lt;VulnDiscussion&gt;In order to properly monitor the changes to the web server and the hosted applications, logging must be enabled. Along with l...
    Rule Medium Severity
  • SRG-APP-000211

    <GroupDescription></GroupDescription>
    Group
  • The web server must separate the hosted applications from hosted web server management functionality.

    &lt;VulnDiscussion&gt;The separation of user functionality from web server management can be accomplished by moving management functions to a separ...
    Rule Medium Severity
  • SRG-APP-000220

    <GroupDescription></GroupDescription>
    Group
  • The web server must invalidate session identifiers upon hosted application user logout or other session termination.

    &lt;VulnDiscussion&gt;Captured sessions can be reused in "replay" attacks. This requirement limits the ability of adversaries from capturing and co...
    Rule Medium Severity
  • SRG-APP-000223

    <GroupDescription></GroupDescription>
    Group
  • Cookies exchanged between the web server and client, such as session cookies, must have security settings that disallow cookie access outside the originating web server and hosted application.

    &lt;VulnDiscussion&gt;Cookies are used to exchange data between the web server and the client. Cookies, such as a session cookie, may contain sessi...
    Rule Medium Severity
  • SRG-APP-000223

    <GroupDescription></GroupDescription>
    Group
  • The web server must accept only system-generated session identifiers.

    &lt;VulnDiscussion&gt;Communication between a client and the web server is done using the HTTP protocol, but HTTP is a stateless protocol. In order...
    Rule Medium Severity
  • SRG-APP-000224

    <GroupDescription></GroupDescription>
    Group
  • The web server must generate a unique session identifier for each session using a FIPS 140-2 approved random number generator.

    &lt;VulnDiscussion&gt;Communication between a client and the web server is done using the HTTP protocol, but HTTP is a stateless protocol. In order...
    Rule High Severity
  • SRG-APP-000224

    <GroupDescription></GroupDescription>
    Group
  • The web server must generate unique session identifiers that cannot be reliably reproduced.

    &lt;VulnDiscussion&gt;Communication between a client and the web server is done using the HTTP protocol, but HTTP is a stateless protocol. In order...
    Rule Medium Severity

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