Check: VCLD-67-000001
VMware vSphere 6.7 VAMI-lighttpd STIG:
VCLD-67-000001
(in versions v1 r3 through v1 r2)
Title
VAMI must limit the number of simultaneous requests. (Cat II impact)
Discussion
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 requests. Mitigation against these threats is to take steps to limit the number of resources that can be consumed in certain ways. VAMI provides the "maxConnections" attribute of the <Connector Elements> to limit the number of concurrent TCP connections. This comes preconfigured with a tested, supported value that must be verified and maintained.
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: # grep "server.max-connections = 1024" /opt/vmware/etc/lighttpd/lighttpd.conf Expected result: server.max-connections = 1024 If the output does not match the expected result, this is a finding.
Fix Text
Navigate to and open /opt/vmware/etc/lighttpd/lighttpd.conf. Add or reconfigure the following value: server.max-connections = 1024
Additional Identifiers
Rule ID: SV-239715r879511_rule
Vulnerability ID: V-239715
Group Title: SRG-APP-000001-WSR-000001
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000054 |
The information system limits the number of concurrent sessions for each organization-defined account and/or account type to an organization-defined number of sessions. |
Controls
Number | Title |
---|---|
AC-10 |
Concurrent Session Control |