A Recent Penetration Test Identified That a Web Server Has

Multiple Choice

A recent penetration test identified that a web server has a major vulnerability. The web server hosts a critical shipping application for the company and requires 99.99% availability. Attempts to fix the vulnerability would likely break the application. The shipping application is due to be replaced in the next three months. Which of the following would BEST secure the web server until the replacement web server is ready?

A) Patch management
B) Antivirus
C) Application firewall
D) Spam filters
E) HIDS