Apache Server 2.4 Windows Site Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000001-WSR-000001
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The Apache web server must limit the number of allowed simultaneous session requests.
Web server management includes the ability to control the number of users and user sessions that utilize a web server. Limiting the number of allowed users and sessions per user is helpful in limit...Rule Medium Severity -
SRG-APP-000001-WSR-000002
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SRG-APP-000095-WSR-000056
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SRG-APP-000141-WSR-000015
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The Apache web server must not perform user management for hosted applications.
User management and authentication can be an essential part of any application hosted by the web server. Along with authenticating users, the user management function must perform several other tas...Rule Medium Severity -
SRG-APP-000141-WSR-000081
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The Apache web server must have resource mappings set to disable the serving of certain file types.
Resource mapping is the process of tying a particular file type to a process in the web server that can serve that type of file to a requesting client and to identify which file types are not to be...Rule Medium Severity -
SRG-APP-000141-WSR-000082
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The Apache web server must allow the mappings to unused and vulnerable scripts to be removed.
Scripts allow server-side processing on behalf of the hosted application user or as processes needed in the implementation of hosted applications. Removing scripts not needed for application operat...Rule Medium Severity -
SRG-APP-000141-WSR-000087
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SRG-APP-000142-WSR-000089
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The Apache web server must be configured to use a specified IP address and port.
The web server must be configured to listen on a specified IP address and port. Without specifying an IP address and port for the web server to use, the web server will listen on all IP addresses a...Rule Medium Severity -
SRG-APP-000175-WSR-000095
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The Apache web server must perform RFC 5280-compliant certification path validation.
A certificate's certification path is the path from the end entity certificate to a trusted root certification authority (CA). Certification path validation is necessary for a relying party to make...Rule Medium Severity -
SRG-APP-000176-WSR-000096
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Only authenticated system administrators or the designated PKI Sponsor for the Apache web server must have access to the Apache web servers private key.
The web server's private key is used to prove the identity of the server to clients and securely exchange the shared secret key used to encrypt communications between the web server and clients. B...Rule Medium Severity -
SRG-APP-000211-WSR-000030
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SRG-APP-000211-WSR-000031
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SRG-APP-000211-WSR-000129
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The Apache web server must separate the hosted applications from hosted Apache web server management functionality.
The separation of user functionality from web server management can be accomplished by moving management functions to a separate IP address or port. To further separate the management functions, se...Rule Medium Severity -
SRG-APP-000220-WSR-000201
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The Apache web server must invalidate session identifiers upon hosted application user logout or other session termination.
Captured sessions can be reused in "replay" attacks. This requirement limits the ability of adversaries from capturing and continuing to employ previously valid session IDs. Session IDs are tokens...Rule Medium Severity -
SRG-APP-000223-WSR-000011
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Cookies exchanged between the Apache web server and client, such as session cookies, must have security settings that disallow cookie access outside the originating Apache web server and hosted application.
Cookies are used to exchange data between the web server and the client. Cookies, such as a session cookie, may contain session information and user credentials used to maintain a persistent connec...Rule Medium Severity -
SRG-APP-000223-WSR-000145
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The Apache web server must accept only system-generated session identifiers.
Communication between a client and the web server is done using the HTTP protocol, but HTTP is a stateless protocol. To maintain a connection or session, a web server will generate a session identi...Rule Medium Severity -
SRG-APP-000224-WSR-000136
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SRG-APP-000224-WSR-000138
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The Apache web server must generate a session ID using as much of the character set as possible to reduce the risk of brute force.
Generating a session identifier (ID) that is not easily guessed through brute force is essential to deter several types of session attacks. By knowing the session ID, an attacker can hijack a user ...Rule Medium Severity -
SRG-APP-000225-WSR-000074
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The Apache web server must augment re-creation to a stable and known baseline.
Making certain that the web server has not been updated by an unauthorized user is always a concern. Adding patches, functions, and modules that are untested and not part of the baseline opens the ...Rule Medium Severity -
SRG-APP-000225-WSR-000141
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The Apache web server must be configured to provide clustering.
The web server may host applications that display information that cannot be disrupted, such as information that is time critical or life threatening. In these cases, a web server that shuts down o...Rule Medium Severity -
SRG-APP-000233-WSR-000146
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The Apache web server document directory must be in a separate partition from the Apache web servers system files.
A web server is used to deliver content on the request of a client. The content delivered to a client must be controlled, allowing only hosted application files to be accessed and delivered. To all...Rule Medium Severity -
SRG-APP-000266-WSR-000142
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SRG-APP-000266-WSR-000159
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Warning and error messages displayed to clients must be modified to minimize the identity of the Apache web server, patches, loaded modules, and directory paths.
Information needed by an attacker to begin looking for possible vulnerabilities in a web server includes any information about the web server, backend systems being accessed, and plug-ins or module...Rule Medium Severity -
SRG-APP-000266-WSR-000160
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Debugging and trace information used to diagnose the Apache web server must be disabled.
Information needed by an attacker to begin looking for possible vulnerabilities in a web server includes any information about the web server and plug-ins or modules being used. When debugging or t...Rule Medium Severity -
SRG-APP-000295-WSR-000012
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The Apache web server must set an absolute timeout for sessions.
Leaving sessions open indefinitely is a major security risk. An attacker can easily use an already authenticated session to access the hosted application as the previously authenticated user. By cl...Rule Medium Severity -
SRG-APP-000295-WSR-000134
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SRG-APP-000315-WSR-000004
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The Apache web server must restrict inbound connections from nonsecure zones.
Remote access to the web server is any access that communicates through an external, non-organization-controlled network. Remote access can be used to access hosted applications or to perform manag...Rule Medium Severity -
SRG-APP-000340-WSR-000029
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Non-privileged accounts on the hosting system must only access Apache web server security-relevant information and functions through a distinct administrative account.
By separating web server security functions from non-privileged users, roles can be developed that can then be used to administer the web server. Forcing users to change from a non-privileged accou...Rule Medium Severity -
SRG-APP-000383-WSR-000175
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The Apache web server must prohibit or restrict the use of nonsecure or unnecessary ports, protocols, modules, and/or services.
Web servers provide numerous processes, features, and functionalities that use TCP/IP ports. Some of these processes may be deemed unnecessary or too unsecure to run on a production system. The we...Rule Medium Severity
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