How it works, from a technical point of view See below for the officially documented security vulnerability. The most affected web servers are Apache Tomcat based ones. Once that number is reached and a new guy comes in asking for something, then the 1st person can’t pay attention to him because his brain is already full. He can have as many conversations as he can pay attention to and not be driven mad. You can picture this as a conversation someone has with other people at the same time. This will exhaust the thread connections pool of the server, leaving no room for other (real) incoming requests – actually accessing the web page in the browser, for example. Repeat this process by opening as many connections as the server has. This process of re-sending the tiny piece of data is done in a loop, at a specific time, hence occupying that connection forever. The server cannot recognize this behaviour as an attack because it might be due to a poor internet connection on the client’s end. Therefore the request will not be finished and the server won’t timeout the connection. Then, just before the connection times out, it sends an extra piece of tiny data in order to fool the server that the request is not over yet. The server hangs there, waiting for the request to be completed or until a connection timeout occurs. ”Ī client sends a request to a web server asking for a page, but it never completes the request.
How does the slowloris attack work how to#
As attacks become smarter and more abundant, it’s important to understand the various attacks that a user is susceptible to and how to protect themselves in the unfortunate chance they find themselves victim to one.Īccording to Wikipedia, “ Slowloris is a type of denial of service attack tool which allows a single machine to take down another machine’s web server with minimal bandwidth and side effects on unrelated services and ports.
The consequences of a malicious web attack can run deep, causing users to reach new depths of annoyance and irritation.
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