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FOSDEM event "Hardwared Based CPU Undervolting on The Cheap"

ZITAI CHEN

Type devroom

Stealing Your Secrets for $30

Starts on day 1 (2021-02-06) at 13:30 (Brussels time, UTC+1) in room Hardware trusted (duration 00:25)

Matrix room #hardware trusted:fosdem.org

Previous work such as Plundervolt has shown that software-based undervolting can induce faults into Intel SGX enclaves and break their security guarantees. However, Intel has addressed this issue with microcode updates.

We later discovered that there is a physical connection on the motherboard which allows us to control the voltage and conduct fault injection. In this talk, we will present a low-cost device: Voltpillager, which use this physical connection to break the guarantees provided by SGX again.

FOSDEM schedule page