VMware vSphere 6.7 VAMI-lighttpd Security Technical Implementation Guide

Overview

Version	Date	Finding Count (27)			Downloads
1	2022-01-03 2021-04-15 2021-04-15	CAT I (High): 2	CAT II (Med): 25	CAT III (Low): 0	Excel	JSON	XML

STIG 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: disa.stig_spt@mail.mil.

Available Profiles

Classified	Public	Sensitive
I - Mission Critical Classified	I - Mission Critical Public	I - Mission Critical Sensitive	II - Mission Support Classified	II - Mission Support Public	II - Mission Support Sensitive	III - Administrative Classified	III - Administrative Public	III - Administrative Sensitive

Findings (MAC II - Mission Support Classified)

Finding ID	Severity	Title	Description
V-239741	High	VAMI must implement TLS1.2 exclusively.	Transport Layer Security (TLS) is a required transmission protocol for a web server hosting controlled information. The use of TLS provides confidentiality of data in transit between the web...
V-239716	High	VAMI must be configured with FIPS 140-2 compliant ciphers for HTTPS connections.	Encryption of data in flight is an essential element of protecting information confidentiality. If a web server uses weak or outdated encryption algorithms, the server's communications can...
V-239740	Medium	VAMI must be protected from being stopped by a non-privileged user.	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....
V-239720	Medium	VAMI must produce log records containing sufficient information to establish what type of events occurred.	After a security incident has occurred, investigators will often review log files to determine what happened. Understanding what type of event occurred is critical for investigation of a...
V-239721	Medium	VAMI log files must only be accessible by privileged users.	Log data is essential in the investigation of events. If log data were to become compromised, competent forensic analysis and discovery of the true source of potentially malicious system activity...
V-239722	Medium	Rsyslog must be configured to monitor VAMI logs.	For performance reasons, rsyslog file monitoring is preferred over configuring VAMI to send events to a syslog facility. Without ensuring that logs are created, that rsyslog configs are created,...
V-239723	Medium	VAMI server binaries and libraries must be verified for their integrity.	Being able to verify that a patch, upgrade, certificate, etc., being added to the web server is unchanged from the producer of the file is essential for file validation and non-repudiation of the...
V-239724	Medium	VAMI must only load allowed server modules.	A web server can provide many features, services, and processes. Some of these may be deemed unnecessary or too unsecure to run on a production DoD system. VAMI can be configured to load any...
V-239725	Medium	VAMI must have Multipurpose Internet Mail Extensions (MIME) that invoke OS 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...
V-239726	Medium	VAMI must explicitly disable Multipurpose Internet Mail Extensions (MIME) mappings based on "Content-Type".	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...
V-239727	Medium	VAMI must remove all mappings to unused scripts.	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...
V-239728	Medium	VAMI 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 identify which file types are not to be...
V-239729	Medium	VAMI must not have the Web Distributed Authoring (WebDAV) servlet installed.	A web server can be installed with functionality that, by its nature, is not secure. WebDAV is an extension to the HTTP protocol that, when developed, was meant to allow users to create, change,...
V-239719	Medium	VAMI must generate log records for system startup and shutdown.	Logging must be started as soon as possible when a service starts and when a service is stopped. Many forms of suspicious actions can be detected by analyzing logs for unexpected service starts...
V-239718	Medium	VAMI must be configured to monitor 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...
V-239715	Medium	VAMI must limit the number of simultaneous requests.	Denial of service (DoS) 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...
V-239717	Medium	VAMI must use cryptography to protect the integrity of remote sessions.	Data exchanged between the user and the web server can range from static display data to credentials used to log in to the hosted application. Even when data appears to be static, the...
V-239733	Medium	VAMI must restrict access to the web root.	As a rule, accounts on a web server are to be kept to a minimum, and those accounts are then restricted as to what they are allowed to access. The web root of the VAMI Lighttpd installation...
V-239732	Medium	VAMI must protect the keystore from unauthorized access.	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....
V-239731	Medium	VAMI 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 on the request of a client or user. Containing user requests to files in the directory tree of the hosted web...
V-239730	Medium	VAMI must prevent hosted applications from exhausting system resources.	Most of the attention to denial-of-service (DoS) attacks focuses on ensuring that systems and applications are not victims of these attacks. However, these systems and applications must also be...
V-239737	Medium	VAMI must not be configured to use "mod_status".	Any application providing too much information in error logs and in administrative messages to the screen risks compromising the data and security of the application and system. VAMI must only...
V-239736	Medium	VAMI must disable directory browsing.	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...
V-239735	Medium	VAMI must set the encoding for all text mime types 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...
V-239734	Medium	VAMI must protect against or limit the effects of HTTP types of denial-of-service (DoS) attacks.	In UNIX and related computer operating systems, a file descriptor is an indicator used to access a file or other input/output resource, such as a pipe or network connection. File descriptors index...
V-239739	Medium	VAMI configuration files must be protected from unauthorized access.	Accounts on the VAMI server are to be kept to a minimum. Only administrators, web managers, developers, auditors, and web authors require accounts on the machine hosting the Lighttpd server. The...
V-239738	Medium	VAMI must have debug logging 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...