Check: VCLD-67-000017
VMware vSphere 6.7 VAMI-lighttpd STIG:
VCLD-67-000017
(in versions v1 r3 through v1 r2)
Title
VAMI must have Multipurpose Internet Mail Extensions (MIME) that invoke OS shell programs disabled. (Cat II impact)
Discussion
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 much access can view information that is not needed for the user's job role, or the user could use the function in an unintentional manner. A MIME tells the web server what type of program various file types and extensions are and what external utilities or programs are needed to execute the file type. There is no reason for VAMI to have MIME types configured for shell scripts.
Check Content
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 '/mimetype\.assign/,/\)/'|grep -E "\.sh|\.csh" If the command returns any value, this is a finding.
Fix Text
Navigate to and open /opt/vmware/etc/lighttpd/lighttpd.conf. Remove any lines that reference ".sh" or ".csh" from the "mimetype.assign" section.
Additional Identifiers
Rule ID: SV-239725r879587_rule
Vulnerability ID: V-239725
Group Title: SRG-APP-000141-WSR-000081
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000381 |
The organization configures the information system to provide only essential capabilities. |
Controls
Number | Title |
---|---|
CM-7 |
Least Functionality |