Apache Server 2.4 UNIX Site Security Technical Implementation Guide

This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: [email protected]

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Version / Release: V1R1

Published: 2019-05-23

Updated At: 2019-07-06 11:58:56

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    Vuln Rule Version CCI Severity Title Description Status Finding Details Comments
    SV-102849r1_rule AS24-U2-000020 CCI-000054 MEDIUM The Apache web server must perform server-side session management. Session management is the practice of protecting the bulk of the user authorization and identity information. This data can be stored on the client system or on the server. When the session information is stored on the client, the session ID, along wit
    SV-102851r1_rule AS24-U2-000030 CCI-000068 MEDIUM The Apache web server must use encryption strength in accordance with the categorization of data hosted by the Apache web server when remote connections are provided. The Apache web server has several remote communications channels. Examples are user requests via http/https, communication to a backend database, and communication to authenticate users. The encryption used to communicate must match the data that is being
    SV-102857r1_rule AS24-U2-000090 CCI-000130 MEDIUM The Apache web server must produce log records containing sufficient information to establish what type of events occurred. Apache web server logging capability is critical for accurate forensic analysis. Without sufficient and accurate information, a correct replay of the events cannot be determined. Ascertaining the correct type of event that occurred is important during
    SV-102859r1_rule AS24-U2-000240 CCI-000381 MEDIUM 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 tasks such as password complexity, locking users after a conf
    SV-102861r1_rule AS24-U2-000300 CCI-000381 MEDIUM The Apache web server must have Multipurpose Internet Mail Extensions (MIME) that invoke operating system shell programs disabled. Controlling what a user of a hosted application can access is part of the security posture of the web server. Any time a user can access more functionality than is needed for the operation of the hosted application poses a security issue. A user with too
    SV-102863r1_rule AS24-U2-000310 CCI-000381 MEDIUM The Apache web server must allow 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 operation or deemed vulnerable helps to secure the web server.
    SV-102865r1_rule AS24-U2-000320 CCI-000381 MEDIUM 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 delivered to a client. By not specifying which files c
    SV-102867r1_rule AS24-U2-000350 CCI-000381 MEDIUM Users and scripts running on behalf of users must be contained to the document root or home directory tree of the Apache web server. A web server is designed to deliver content and execute scripts or applications on the request of a client or user. Containing user requests to files in the directory tree of the hosted web application and limiting the execution of scripts and application
    SV-102869r1_rule AS24-U2-000360 CCI-000382 MEDIUM 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 available to the hosting server. If the web server has mult
    SV-102873r1_rule AS24-U2-000380 CCI-000185 MEDIUM 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 an informed decision regarding acceptance of an end entit
    SV-102875r1_rule AS24-U2-000390 CCI-000186 MEDIUM 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. By gaining access to the private key, an attacker can pre
    SV-102883r1_rule AS24-U2-000470 CCI-001664 MEDIUM 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 connection between the user and the hosted application since HTT
    SV-102885r1_rule AS24-U2-000540 CCI-001190 MEDIUM 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 possibility for security risks. The web server must offer,
    SV-102887r1_rule AS24-U2-000580 CCI-001084 MEDIUM 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 allow a client access to system files of any type is a major
    SV-102889r1_rule AS24-U2-000590 CCI-001094 MEDIUM The Apache web server must be tuned to handle the operational requirements of the hosted application. A denial of service (DoS) can occur when the Apache web server is so overwhelmed that it can no longer respond to additional requests. A web server not properly tuned may become overwhelmed and cause a DoS condition even with expected traffic from users.
    SV-102891r1_rule AS24-U2-000620 CCI-001312 MEDIUM The Apache web server must display a default hosted application web page, not a directory listing, when a requested web page cannot be found. The goal is to completely control the web user's experience in navigating any portion of the web document root directories. Ensuring all web content directories have at least the equivalent of an index.html file is a significant factor to accomplish this
    SV-102893r1_rule AS24-U2-000630 CCI-001312 MEDIUM 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 an Apache web server includes any information about the Apache web server, backend systems being accessed, and plug-ins or modules being used. Apache web servers will of
    SV-102895r1_rule AS24-U2-000640 CCI-001312 MEDIUM 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 Apache web server and plug-ins or modules being used. When debugging or trace information is enabled in a production web ser
    SV-102897r1_rule AS24-U2-000650 CCI-002361 MEDIUM 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 closing sessions after an absolute period of time, the user
    SV-102899r1_rule AS24-U2-000660 CCI-002361 MEDIUM The Apache web server must set an inactive 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 closing sessions after a set period of inactivity, the Apach
    SV-102903r1_rule AS24-U2-000680 CCI-002314 MEDIUM The Apache web server must restrict inbound connections from nonsecure zones. Remote access to the Apache 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 management functions. A web server can be accessed re
    SV-102905r1_rule AS24-U2-000700 CCI-002235 MEDIUM 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 Apache web server security functions from non-privileged users, roles can be developed that can then be used to administer the Apache web server. Forcing users to change from a non-privileged account to a privileged account when operating on
    SV-102907r1_rule AS24-U2-000780 CCI-001813 MEDIUM The Apache web server application, libraries, and configuration files must only be accessible to privileged users. The Apache web server can be modified through parameter modification, patch installation, upgrades to the Apache web server or modules, and security parameter changes. With each of these changes, there is the potential for an adverse effect such as a deni
    SV-102909r1_rule AS24-U2-000810 CCI-002470 MEDIUM The Apache web server must only accept client certificates issued by DoD PKI or DoD-approved PKI Certification Authorities (CAs). Non-DoD approved PKIs have not been evaluated to ensure that they have security controls and identity vetting procedures in place that are sufficient for DoD systems to rely on the identity asserted in the certificate. PKIs lacking sufficient security con
    SV-102919r1_rule AS24-U2-000870 CCI-002418 MEDIUM The Apache web server cookies, such as session cookies, sent to the client using SSL/TLS must not be compressed. A cookie is used when a web server needs to share data with the client's browser. The data is often used to remember the client when the client returns to the hosted application at a later date. A session cookie is a special type of cookie used to remembe
    SV-102921r1_rule AS24-U2-000880 CCI-002418 MEDIUM Cookies exchanged between the Apache web server and the client, such as session cookies, must have cookie properties set to prohibit client-side scripts from reading the cookie data. A cookie can be read by client-side scripts easily if cookie properties are not set properly. By allowing cookies to be read by the client-side scripts, information such as session identifiers could be compromised and used by an attacker who intercepts th
    SV-102923r1_rule AS24-U2-000890 CCI-002418 MEDIUM Cookies exchanged between the Apache web server and the client, such as session cookies, must have cookie properties set to force the encryption of cookies. Cookies can be sent to a client using TLS/SSL to encrypt the cookies, but TLS/SSL is not used by every hosted application since the data being displayed does not require the encryption of the transmission. To safeguard against cookies, especially session
    SV-102931r1_rule AS24-U2-000960 CCI-000366 LOW The Apache web server must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. Configuring the Apache web server to implement organization-wide security implementation guides and security checklists guarantees compliance with federal standards and establishes a common security baseline across the DoD that reflects the most restricti