https://github.com/emowtet/vulnserver

A simple Windows vuln server for buffer overflow studies
https://github.com/emowtet/vulnserver

assembly buffer-overflow buffer-overflow-attack c desktop disassembling server windows windows-desktop

Last synced: 9 months ago
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A simple Windows vuln server for buffer overflow studies

• Host: GitHub
• URL: https://github.com/emowtet/vulnserver
• Owner: emowtet
• License: mit
• Created: 2025-05-28T01:37:47.000Z (10 months ago)
• Default Branch: main
• Last Pushed: 2025-05-31T17:56:53.000Z (10 months ago)
• Last Synced: 2025-06-13T23:29:59.704Z (10 months ago)
• Topics: assembly, buffer-overflow, buffer-overflow-attack, c, desktop, disassembling, server, windows, windows-desktop
• Language: C
• Homepage:
• Size: 37.1 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# vulnserver

A basic vulnerable server for buffer overflow studies.

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This is a simple server that listens on port 9999 for TCP connections. It's useful for the first steps in learning about buffer overflow and disassembling.

The server uses a DLL with a gadget that helps point to the shellcode address. The gadget is written directly in assembly for better control in this case study.

![](images/image.png)

The vulnserver.c source code has plenty of comments to help with understanding how to make a simple server and where the vulnerability occurs.