VMware vSphere 6.7 EAM Tomcat Security Technical Implementation Guide

Description

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]

Details

Version / Release: V1R1

Published: 2021-04-15

Updated At: 2021-05-02 21:04:27

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Drop CKL or SCAP (XCCDF) results here.

    Vuln Rule Version CCI Severity Title Description Status Finding Details Comments
    SV-239372r674610_rule VCEM-67-000001 CCI-000054 MEDIUM ESX Agent Manager must limit the amount of time that each TCP connection is kept alive. Denial of service is one threat against web servers. Many DoS attacks attempt to consume web server resources in such a way that no more resources are available to satisfy legitimate requests. In Tomcat, the "connectionTimeout" attribute sets the number
    SV-239373r674613_rule VCEM-67-000002 CCI-000054 MEDIUM ESX Agent Manager must limit the number of concurrent connections permitted. Resource exhaustion can occur when an unlimited number of concurrent requests are allowed on a website, facilitating a denial-of-service attack. Unless the number of requests is controlled, the web server can consume enough system resources to cause a sys
    SV-239374r674616_rule VCEM-67-000003 CCI-000054 MEDIUM ESX Agent Manager must limit the maximum size of a POST request. The "maxPostSize" value is the maximum size in bytes of the POST that will be handled by the container FORM URL parameter parsing. Limit its size to reduce exposure to a denial-of-service attack. If "maxPostSize" is not set, the default value of 2097152 (
    SV-239375r674619_rule VCEM-67-000004 CCI-000054 MEDIUM ESX Agent Manager must protect cookies from XSS. Cookies are a common way to save session state over the HTTP(S) protocol. If attackers can compromise session data stored in a cookie, they are better able to launch an attack against the server and its applications. When a cookie is tagged with the "Http
    SV-239376r674700_rule VCEM-67-000005 CCI-000067 MEDIUM ESX Agent Manager must record user access in a format that enables monitoring of remote access. Remote access can be exploited by an attacker to compromise the server. By recording all remote access activities, it will be possible to determine the attacker's location, intent, and degree of success. Tomcat can be configured with an "AccessLogValve",
    SV-239377r674625_rule VCEM-67-000006 CCI-000169 MEDIUM ESX Agent Manager must generate log records for system startup and shutdown. Logging must be started as soon as possible when a service starts and as late as possible when a service is stopped. Many forms of suspicious actions can be detected by analyzing logs for unexpected service starts and stops. Also, by starting to log immed
    SV-239378r674628_rule VCEM-67-000007 CCI-000163 MEDIUM ESX Agent Manager log files must only be modifiable by privileged users. Log data is essential in the investigation of events. The accuracy of the information is always pertinent. One of the first steps an attacker will undertake is the modification or deletion of log records to cover tracks and prolong discovery. The web serv
    SV-239379r674631_rule VCEM-67-000008 CCI-001749 MEDIUM ESX Agent Manager application files must be verified for their integrity. Verifying that ESX Agent Manager application code is unchanged from its shipping state is essential for file validation and non-repudiation of the ESX Agent Manager. There is no reason that the MD5 hash of the rpm original files should be changed after in
    SV-239380r674634_rule VCEM-67-000009 CCI-001749 MEDIUM ESX Agent Manager must only run one webapp. VMware ships ESX Agent Managers on the VCSA with one webapp. Any other path is potentially malicious and must be removed.
    SV-239381r674637_rule VCEM-67-000010 CCI-000381 MEDIUM ESX Agent Manager must not be configured with unsupported realms. ESX Agent Manager performs authentication at the application level and not through Tomcat. To eliminate unnecessary features and ensure that ESX Agent Manager remains in its shipping state, the lack of a UserDatabaseRealm configuration must be confirmed.
    SV-239382r674640_rule VCEM-67-000011 CCI-000381 MEDIUM ESX Agent Manager must be configured to limit access to internal packages. The "package.access" entry in the "catalina.properties" file implements access control at the package level. When properly configured, a security exception will be reported if there is an errant or malicious webapp attempt to access the listed internal cl
    SV-239383r674643_rule VCEM-67-000012 CCI-000381 MEDIUM ESX Agent Manager must have Multipurpose Internet Mail Extensions (MIMEs) that invoke operating system shell programs disabled. MIME mappings tell ESX Agent Manager what type of program various file types and extensions are and what external utilities or programs are needed to execute the file type. By ensuring that various shell script MIME types are not included in web.xml, the
    SV-239384r674646_rule VCEM-67-000013 CCI-000381 MEDIUM ESX Agent Manager must have mappings set for Java servlet pages. 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 identify which file types are not to be delivered to a client. By not specifying which files can an
    SV-239385r674649_rule VCEM-67-000014 CCI-000381 MEDIUM ESX Agent Manager must not have the Web Distributed Authoring (WebDAV) servlet installed. WebDAV is an extension to the HTTP protocol that, when developed, was meant to allow users to create, change, and move documents on a server, typically a web server or web share. WebDAV is not widely used and has serious security concerns because it may a
    SV-239386r674652_rule VCEM-67-000015 CCI-000381 MEDIUM ESX Agent Manager must be configured with memory leak protection. The Java Runtime environment can cause a memory leak or lock files under certain conditions. Without memory leak protection, ESX Agent Manager can continue to consume system resources, which will lead to "OutOfMemoryErrors" when reloading web applications
    SV-239387r674655_rule VCEM-67-000016 CCI-000381 MEDIUM ESX Agent Manager must not have any symbolic links in the web content directory tree. A web server is designed to deliver content and execute scripts or applications at 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-239388r674658_rule VCEM-67-000017 CCI-001082 MEDIUM ESX Agent Manager directory tree must have permissions in an "out-of-the box" state. As a rule, accounts on a web server are to be kept to a minimum. Only administrators, web managers, developers, auditors, and web authors require accounts on the machine hosting the web server. The resources to which these accounts have access must also b
    SV-239389r674661_rule VCEM-67-000018 CCI-001190 MEDIUM ESX Agent Manager must fail to a known safe state if system initialization fails, shutdown fails, or aborts fail. Determining a safe state for failure and weighing that against a potential denial of service for users depends on what type of application the web server is hosting. For the ESX Agent Manager, it is preferable that the service abort startup on any initial
    SV-239390r674664_rule VCEM-67-000019 CCI-001094 MEDIUM ESX Agent Manager must limit the number of allowed connections. Limiting the number of established connections to the ESX Agent Manager is a basic denial-of-service protection. Servers where the limit is too high or unlimited can potentially run out of system resources and negatively affect system availability.
    SV-239391r674667_rule VCEM-67-000020 CCI-001310 MEDIUM ESX Agent Manager must set "URIEncoding" to UTF-8. Invalid user input occurs when a user inserts data or characters into a hosted application's data entry field and the hosted application is unprepared to process that data. This results in unanticipated application behavior, potentially leading to an appl
    SV-239392r674670_rule VCEM-67-000021 CCI-001310 MEDIUM ESX Agent Manager must use the "setCharacterEncodingFilter" filter. Invalid user input occurs when a user inserts data or characters into a hosted application's data entry field and the hosted application is unprepared to process that data. This results in unanticipated application behavior, potentially leading to an appl
    SV-239393r674673_rule VCEM-67-000022 CCI-001312 MEDIUM ESX Agent Manager must set the welcome-file node to a default web page. Enumeration techniques, such as URL parameter manipulation, rely on being able to obtain information about the web server's directory structure by locating directories without default pages. In this scenario, the web server will display to the user a list
    SV-239394r674676_rule VCEM-67-000023 CCI-001312 MEDIUM ESX Agent Manager must not show directory listings. Enumeration techniques, such as URL parameter manipulation, rely on being able to obtain information about the web server's directory structure by locating directories without default pages. In this scenario, the web server will display to the user a list
    SV-239395r674679_rule VCEM-67-000024 CCI-001312 MEDIUM ESX Agent Manager must be configured to show error pages with minimal information. Web servers will often display error messages to client users, including enough information to aid in the debugging of the error. The information given back in error messages may display the web server type, version, patches installed, plug-ins and module
    SV-239396r717040_rule VCEM-67-000025 CCI-001312 MEDIUM ESX Agent Manager must not enable support for TRACE requests. "Trace" is a technique for a user to request internal information about Tomcat. This is useful during product development but should not be enabled in production. Allowing an attacker to conduct a Trace operation against ESX Agent Manager will expose info
    SV-239397r717099_rule VCEM-67-000026 CCI-001312 MEDIUM ESX Agent Manager must have the debug option turned off. 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 trace information is enabled in a production web server, in
    SV-239398r674688_rule VCEM-67-000027 CCI-001348 MEDIUM Rsyslog must be configured to monitor and ship ESX Agent Manager log files. ESX Agent Manager a number of logs that must be offloaded from the originating system. This information can then be used for diagnostic, forensic, or other purposes relevant to ensuring the availability and integrity of the hosted application. Satisfies:
    SV-239399r674691_rule VCEM-67-000028 CCI-001813 MEDIUM ESX Agent Manager must set the secure flag for cookies. The secure flag is an option that can be set by the application server when sending a new cookie to the user within an HTTP Response. The purpose of the secure flag is to prevent cookies from being observed by unauthorized parties due to the transmission
    SV-239400r674694_rule VCEM-67-000029 CCI-001762 MEDIUM ESX Agent Manager must be configured with the appropriate ports. 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 ports that the ESX Agent Manager listens on are configured in
    SV-239401r674697_rule VCEM-67-000030 CCI-002385 MEDIUM ESX Agent Manager must disable the shutdown port. An attacker has at least two reasons to stop a web server. The first is to cause a denial of service, and the second is to put in place changes the attacker made to the web server configuration. If the Tomcat shutdown port feature is enabled, a shutdown s