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CGI Scanner
CGI Scanner
A CGI (common gateway interface) scanner is able to detect security flaws and exploits in servers and web-based applications by testing HTTP (Hypertext Transmission Protocol) against known CGI strings. As an essential part of HTTP, CGI is a standard approach used by various web servers to forward a user’s request to web-based programs. After a request is received, it sends that program data back to the user.
Though a CGI scanner resembles the scanning component found in anti-virus software, it does have a few notable limitations. One of the major drawbacks is the fact that it often fails to detect the presence of security threats not previously defined. Lack of this feature makes a CGI scanner not as efficient as other solutions, while leaving servers and various web-based applications open to attacks. Programs known as web application scanners, offer a more comprehensive approach. They have the ability to detect and red flag all anomalies along with any known issues concerning the corresponding application.