$ ctf42

flipper

Pwn weight 24.32 No technique tags yet.
Difficulty Not rated yet

Flag format: gctf{...}

Our OS professor keeps talking about Rowhammer, and how dangerous it is. I don't believe him. Can you really steal the flag from my kernel with just 1 bitflip?

Base repo is https://github.com/IAIK/sweb (commit ad1b59a5c2acbd4bff346bdf282a4d5e21bd9cb1) Build instructions at here

Notes

This is a setup to run a fixed kernel with new userspace. Please read the instructions here to find out how to compile and run.

The same instructions also work for the source code at https://github.com/iaik/sweb, which is probably easier for debugging.

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