Complete Guide to Securing Web Applications on Ports 80 and 443

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Ports 80 and 443 are the primary ports for web traffic, with port 80 handling unencrypted HTTP traffic and port 443 managing encrypted HTTPS traffic. Both are crucial to understand in web penetration testing, as they form the backbone of most web applications and are frequently targeted for vulnerabilities. Let’s explore each one in detail.

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Photo by Ilya Pavlov on Unsplash

Overview: Port 80 is the default port for HTTP, a protocol used for transmitting web pages from servers to browsers. HTTP is stateless and unencrypted, which means all data sent over HTTP is visible in plaintext, making it an easy target for attackers.

Common Vulnerabilities:

Open Redirects: Maliciously redirecting users to a different website.Insecure Session Handling: HTTP lacks encryption, leaving session cookies and other sensitive data vulnerable to interception.
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