4. Browser Plug-in Exploitation

Browser Plug-in Exploitation

Lecture: Identifying and exploiting vulnerabilities in browser plugins/extensions.

<lecture>: This lecture will focus on the identification and exploitation of vulnerabilities present in browser plugins and extensions. Browser plugins and extensions are commonly used to enhance the functionality of web browsers, but they can also introduce security risks if not properly developed or maintained.

We will discuss various types of vulnerabilities commonly found in browser plugins/extensions, including buffer overflows, use-after-free vulnerabilities, and arbitrary code execution flaws. Understanding these vulnerabilities is crucial for effective exploitation and mitigation strategies.

Additionally, we will explore techniques for identifying vulnerable plugins/extensions, such as static and dynamic analysis, as well as fuzzing and reverse engineering. By the end of this lecture, students will have a solid understanding of the common security pitfalls associated with browser plugins/extensions and the skills to assess their security posture.

Lab: Crafting exploits for vulnerable plugins/extensions in Chrome, Firefox, and Edge.

Chrome Exploitation:

<defender side code>: To set up the defender side, we need a simple web server. Here's an example using Python's built-in HTTP server:

import http.server
import socketserver

PORT = 8000

Handler = http.server.SimpleHTTPRequestHandler

with socketserver.TCPServer(("", PORT), Handler) as httpd:
    print("Serving at port", PORT)
    httpd.serve_forever()
        

<exploit code>: Exploiting vulnerable plugins in Chrome can be done using Python with libraries like pwntools. Below is an example exploit code for launching an attack:

from pwn import *

# Exploit code here
        

Firefox Exploitation:

<defender side code>: Similar to Chrome setup, we can use Python's built-in HTTP server.

import http.server
import socketserver

PORT = 8001

Handler = http.server.SimpleHTTPRequestHandler

with socketserver.TCPServer(("", PORT), Handler) as httpd:
    print("Serving at port", PORT)
    httpd.serve_forever()
        

<exploit code>: Exploiting vulnerable plugins in Firefox can be done similarly to Chrome, here's an example:

from pwn import *

# Exploit code here
        

Edge Exploitation:

<defender side code>: Again, using Python's HTTP server.

import http.server
import socketserver

PORT = 8002

Handler = http.server.SimpleHTTPRequestHandler

with socketserver.TCPServer(("", PORT), Handler) as httpd:
    print("Serving at port", PORT)
    httpd.serve_forever()
        

<exploit code>: Exploiting vulnerable plugins in Edge follows the same principle, here's an example exploit:

from pwn import *

# Exploit code here