# Full WriteUp

Full Writeup on our website: [https://www.aperikube.fr/docs/tamuctf_2019/cooper/](https://www.aperikube.fr/docs/tamuctf_2019/cooper/)

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# TL;DR

Copper was a network/crypto challenge. It was necessary to intercept and modify exchanges between a client and a server in order to execute commands and retrieve the flag.