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Trammell Hudson ⚙ @qrs
, 3 tweets, 2 min read Read on Twitter
Allegedly a supply chain attack on Supermicro's servers installed small CPUs disguised as passive capacitors on the mainboard that were able to take over the BMC, which could then compromise the main CPU:…
The BMC is vastly over-privileged and tied into so many parts of the system. Securing it is vital to secure the root of trust, and open source firmware like OpenBMC and u-BMC are good first steps to trusting it.
This also is another explanation for Apple dropping Supermicro servers a few years ago, the rumors at the time were due to compromised firmware updates:…
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