Cachetalk is a proof-of-concept program that is able to read and write arbitrary bits using HTTP server-side caching.
It was released as part of the In Plain Sight: The Perfect Exfiltration talk given at Hack In The Box Amsterdam 2016 conference by Itzik Kotler and Amit Klein from SafeBreach Labs.
Slides are availble here and a Whitepaper is available here
0.1.0
Cachetalk requires Python 2.7.x to run.
$ git clone https://github.com/SafeBreach-Labs/cachetalk.git
$ cd cachetalk
$ python cachetalk.py -hBSD 3-Clause