VCLD-67-000001 - VAMI must limit the number of simultaneous requests.

Gavin M. Dennis

22 April 2022 15:10

Details

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 to limit the number of concurrent TCP connections. This comes preconfigured with a tested, supported value that must be verified and maintained.

Solution

Navigate to and open /opt/vmware/etc/lighttpd/lighttpd.conf.

Add or reconfigure the following value:

server.max-connections = 1024

Supportive Information

The following resource is also helpful.

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_6-7_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Access Control.This control applies to the following type of system Unix.

References

800-53|AC-10
CAT|II
CCI|CCI-000054
Rule-ID|SV-239715r679255_rule
STIG-ID|VCLD-67-000001
Vuln-ID|V-239715

Source

Tenable.com/audits

PS. Before you go.

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