https://github.com/yanorei32/unsafebf

An unsafe brainfuck interpreter. It uses stack as memory directly.
https://github.com/yanorei32/unsafebf

brainfuck brainfuck-interpreter return-oriented-programming stack-smaching vulnerable

Last synced: about 1 month ago
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An unsafe brainfuck interpreter. It uses stack as memory directly.

• Host: GitHub
• URL: https://github.com/yanorei32/unsafebf
• Owner: yanorei32
• License: bsd-2-clause
• Created: 2023-12-23T09:38:53.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2023-12-24T14:18:54.000Z (over 1 year ago)
• Last Synced: 2025-02-12T17:22:50.124Z (3 months ago)
• Topics: brainfuck, brainfuck-interpreter, return-oriented-programming, stack-smaching, vulnerable
• Language: C
• Homepage:
• Size: 12.7 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# unsafebf

An unsafe brainfuck interpreter.

It uses stack as memory directly.

## Features

- Simple code

- Dynamically allocated large memory

- A little fast

- Allows RCE for attacker

- Non portable (It depends on POSIX read and write functions that do not use stack.)

## How to

```bash

gcc main.c -o unsafebf

./unsafebf "Some bf code"

```

## FAQ

### Q. It's not working in my environment

This software depends on the implementation heavily.

I confirmed it works in x86_64 and -O3 flags.