The vCenter VAMI service must be configured to hide the server type and version in client responses.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-259156	SRG-APP-000516-WSR-000174	VCLD-80-000098	SV-259156r1003727_rule	2024-07-11	2

Description
Web servers will often display error messages to client users, displaying 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 modules installed, type of code being used by the hosted application, and any backends being used for data storage. This information could be used by an attacker to blueprint what type of attacks might be successful. Therefore, VAMI must be configured to hide the server version at all times.

Description

Web servers will often display error messages to client users, displaying 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 modules installed, type of code being used by the hosted application, and any backends being used for data storage. This information could be used by an attacker to blueprint what type of attacks might be successful. Therefore, VAMI must be configured to hide the server version at all times.

ℹ️ Check
At the command prompt, run the following command: # /opt/vmware/cap_lighttpd/sbin/lighttpd -p -f /var/lib/vmware/cap-lighttpd/lighttpd.conf 2>/dev/null\|grep "server.tag" Expected result: server.tag = "vami" If "server.tag" is not set to "vami", this is a finding. Note: The 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". Refer to KB Article 2100508 for more details: https://kb.vmware.com/s/article/2100508

ℹ️ Check

At the command prompt, run the following command: # /opt/vmware/cap_lighttpd/sbin/lighttpd -p -f /var/lib/vmware/cap-lighttpd/lighttpd.conf 2>/dev/null|grep "server.tag" Expected result: server.tag = "vami" If "server.tag" is not set to "vami", this is a finding. Note: The 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". Refer to KB Article 2100508 for more details: https://kb.vmware.com/s/article/2100508

✔️ Fix
Navigate to and open: /opt/vmware/etc/lighttpd/applmgmt-lighttpd.conf Add or reconfigure the following value: server.tag = "vami" Restart the service with the following command: # systemctl restart cap-lighttpd