CTF (Capture The Flag) is a fun way to learn hacking. It's an information security competition, you have to solve challenges from decoding a string to hacking into a server. The goal is to find a specific piece of text called flag.

Jan 26, 2024 · These vulnerabilities often show up in CTFs as web security challenges where the user needs to exploit a bug to gain some kind of higher level privilege. As a "prerequisite" to getting into web exploitation, understanding the most common web frameworks is a good way to identify potential targets.

Oct 29, 2022 · Web hacking CTFs focus on finding and exploiting the vulnerabilities in web applications. As explained earlier, web hacking CTFs belong to the Jeopardy style category. You are generally...

"Capture The Flag" (CTF) competitions are not related to running outdoors or playing first-person shooters. Instead, they consist of a set of computer security puzzles (or challenges) involving reverse-engineering, memory corruption, cryptography, web technologies, and more.

The Hacker101 CTF is a game designed to let you learn to hack in a safe, rewarding environment. Hacker101 is a free educational site for hackers, run by HackerOne.

247CTF is a security learning environment where hackers can test their abilities across a number of different Capture The Flag (CTF) challenge categories including web, cryptography, networking, reversing and exploitation.

Web. Web challenges in CTF competitions usually involve the use of HTTP (or similar protocols) and technologies involved in information transfer and display over the internet like PHP, CMS's (e.g. Django), SQL, Javascript, and more.

1. Web App Exploitation. Web pages, just like the one you are reading now, are generally made of three components, HTML, CSS, and JavaScript. Each of these components has a different role in providing the formatting and functions of a webpage.

Clickjacking（点击劫持）是由互联网安全专家罗伯特 · 汉森和耶利米 · 格劳斯曼在 2008 年首创的。 是一种视觉欺骗手段，在 WEB 端就是 iframe 嵌套一个透明不可见的页面，让用户在不知情的情况下，点击攻击者想要欺骗用户点击的位置。 由于点击劫持的出现，便出现了反 frame 嵌套的方式，因为点击劫持需要 iframe 嵌套页面来攻击。 下面代码是最常见的防止 frame 嵌套的例子： VPS（Virtual Private Server 虚拟专用服务器）技术，将一部服务器分割成多个虚拟专享服务器 …

在网络安全的世界里，CTF（Capture The Flag）无疑是最令人热血沸腾的领域之一。 从破解密码到漏洞挖掘，从逆向分析到网络对抗，CTF竞赛为无数热爱技术的年轻人提供了展示才华、挑战极限的舞台。 正是在这片充满未知与可能的领域，我找到了属于自己的热情与方向。 作为中安信网络安全协会第五届社长，我有幸带领团队一路披荆斩棘，从最初的懵懂无知到如今的百战成锋，经历了无数的深夜钻研与团结协作。 这本书的诞生，正是希望将我一路走来的经验与心得与大 …