https://github.com/nccgroup/blackboxprotobuf

Blackbox Protobuf is a set of tools for working with encoded Protocol Buffers (protobuf) without the matching protobuf definition.
https://github.com/nccgroup/blackboxprotobuf

burp protobuf

Last synced: 28 days ago
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Blackbox Protobuf is a set of tools for working with encoded Protocol Buffers (protobuf) without the matching protobuf definition.

• Host: GitHub
• URL: https://github.com/nccgroup/blackboxprotobuf
• Owner: nccgroup
• License: mit
• Created: 2018-05-15T00:07:03.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2024-05-15T14:35:55.000Z (about 1 month ago)
• Last Synced: 2024-05-16T03:48:02.053Z (about 1 month ago)
• Topics: burp, protobuf
• Language: Python
• Homepage:
• Size: 537 KB
• Stars: 458
• Watchers: 18
• Forks: 79
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Blackbox Protobuf

**Blackbox Protobuf now has an official package on PyPi under the name `bbpb`.

The `blackboxprotobuf` package is an older fork**

## Description

Blackbox Protobuf is a set of tools for working with encoded Protocol Buffers

(protobuf) without the matching protobuf definition.

Protobuf is a binary serialization format from Google which can be used as a

more efficient alternative to formats like JSON or XML. Developers can define

the message format in a `.proto` file and use the protobuf compiler to

generate message handlers in their language of choice. The protobuf encoding

is binary, and unlike json/xml not human readable or easy to modify by hand.

The format also takes advantage of both sides having the message definition and

strips out much of the type information. This is good for efficiency, but

increases the difficulty analyzing or modifying the network traffic.

Blackbox protobuf is designed to allow working with protocol buffers without

the message definition. It was originally implemented as a Burp extension for

decoding and modifying messages during mobile pentests, but has also been used

for reverse engineering and forensics tooling.

## Tools

This repository contains two applications for working with protocol buffers:

- A jython burp extension in [burp/](https://github.com/nccgroup/blackboxprotobuf/tree/master/burp)

- A python library that can be used in other applications in [lib/](https://github.com/nccgroup/blackboxprotobuf/tree/master/lib)

- A python-based CLI embedded in the [library](https://github.com/nccgroup/blackboxprotobuf/tree/master/lib/CLI.md)

- A mitmproxy addon in [mitmproxy](https://github.com/nccgroup/blackboxprotobuf/tree/master/mitmproxy)

## Future Tools

Some tooling that may be built on top of blackboxprotobuf in the future:

- protobuf type discovery tool