Krzysztof Okupski

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Main Stage·44 min

DEF CON
Hardware
Date: Aug 2024
Location: Las Vegas

AMD Sinkclose: Universal Ring-2 Privilege Escalation

Enrique Nissim · Krzysztof Okupski

Silicon-level vulnerability in AMD processor System Management Mode enabling persistent Ring-2 privilege escalation invisible to hypervisors.

amdsmmprivilege-escalation+2

Main Stage·44 min

DEF CON
Hardware
Date: Aug 2024
Location: Las Vegas

AMDSinkclose - Universal Ring2 Privilege Escalation

Enrique Nissim · Krzysztof Okupski

Enrique Nissim and Krzysztof Okupski disclose AMDSinkclose, a vulnerability allowing Ring -2 execution and System Management Mode takeover across millions of AMD processors.

amdsmmprivilege-escalation+2