Lighttpd must remove all export ciphers to transmitted information.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-89319	VRAU-LI-000490	SV-99969r1_rule		Medium

Description
During the initial setup of a Transport Layer Security (TLS) connection to the web server, the client sends a list of supported cipher suites in order of preference. The Lighttpd will reply with the cipher suite it will use for communication from the client list. If an attacker can intercept the submission of cipher suites to the web server and place, as the preferred cipher suite, a weak export suite, the encryption used for the session becomes easy for the attacker to break, often within minutes to hours.

Description

During the initial setup of a Transport Layer Security (TLS) connection to the web server, the client sends a list of supported cipher suites in order of preference. The Lighttpd will reply with the cipher suite it will use for communication from the client list. If an attacker can intercept the submission of cipher suites to the web server and place, as the preferred cipher suite, a weak export suite, the encryption used for the session becomes easy for the attacker to break, often within minutes to hours.

STIG	Date
VMware vRealize Automation 7.x Lighttpd Security Technical Implementation Guide	2018-10-12

Details

Check Text ( C-89011r1_chk )
At the command prompt, execute the following command: grep '^ssl.cipher-list' /opt/vmware/etc/lighttpd/lighttpd.conf If the value returned in not "ssl.cipher-list = "FIPS: +3DES:!aNULL" "or is commented out, this is a finding.

Fix Text (F-96061r1_fix)
Navigate to and open /opt/vmware/etc/lighttpd/lighttpd.conf Configure the lighttpd.conf file with the following: ssl.cipher-list = "FIPS: +3DES:!aNULL"