New Plundervolt attack impacts Intel CPUs SGX

Academics from three universities across Europe have disclosed today a new attack that impacts the integrity of data stored inside Intel SGX, a highly-secured area of Intel CPUs.

The attack, which researchers have named Plundervolt, exploits the interface through which an operating system can control an Intel processor’s voltage and frequency — the same interface that allows gamers to overclock their CPUs.

Academics say they discovered that by tinkering with the amount of voltage and frequency a CPU receives, they can alter bits inside SGX to cause errors that can be exploited at a later point after the data has left the security of the SGX enclave.

They say Plundervolt can be used to recover encryption keys or introduce bugs in previously secure software.

Source: New Plundervolt attack impacts Intel CPUs | ZDNet

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