VAMI must only load allowed server modules.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-239724	VCLD-67-000016	SV-239724r816797_rule		Medium

Description
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 number of external modules, but only a specific few are provided and supported by VMware. Additional, unexpected modules must be removed.

STIG	Date
VMware vSphere 6.7 VAMI-lighttpd Security Technical Implementation Guide	2022-01-03

Details

Check Text ( C-42957r816796_chk )
Note: The below command must be run from a bash shell and not from a shell generated by the "appliance shell". Use the "chsh" command to change the shell for the account to "/bin/bash". At the command prompt, execute the following command: # /opt/vmware/sbin/vami-lighttpd -p -f /opt/vmware/etc/lighttpd/lighttpd.conf\|awk '/server\.modules/,/\)/' Expected result: server.modules = ( "mod_access", "mod_accesslog", "mod_proxy", "mod_cgi", "mod_rewrite", "mod_magnet", "mod_setenv", # 7 ) If the output does not match the expected result, this is a finding.

Check Text ( C-42957r816796_chk )

Note: The below command must be run from a bash shell and not from a shell generated by the "appliance shell". Use the "chsh" command to change the shell for the account to "/bin/bash".

At the command prompt, execute the following command:

# /opt/vmware/sbin/vami-lighttpd -p -f /opt/vmware/etc/lighttpd/lighttpd.conf|awk '/server\.modules/,/\)/'

Expected result:

server.modules = (
"mod_access",
"mod_accesslog",
"mod_proxy",
"mod_cgi",
"mod_rewrite",
"mod_magnet",
"mod_setenv",
# 7
)

If the output does not match the expected result, this is a finding.

Fix Text (F-42916r679281_fix)
Navigate to and open /opt/vmware/etc/lighttpd/lighttpd.conf. Configure the "server.modules" section to the following: server.modules = ( "mod_access", "mod_accesslog", "mod_proxy", "mod_cgi", "mod_rewrite", ) server.modules += ( "mod_magnet" )