Kensan on Nostr: ETHZ has new attacks on confidential computing (Intel TDX/AMD SEV-SNP) based on ...
ETHZ has new attacks on confidential computing (Intel TDX/AMD SEV-SNP) based on interrupts: „… the untrusted hypervisor is still responsible for resource and configuration management. Consequently, the hypervisor also manages interrupts for CVMs. In Heckler, the hypervisor uses malicious interrupts to compromise the security of the CVMs. Our insight is to use the interrupt handlers that have global effects, such that we can manipulate a CVM’s register states to change the data and control flow.“
Published at
2024-04-05 18:54:39Event JSON
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"content": "ETHZ has new attacks on confidential computing (Intel TDX/AMD SEV-SNP) based on interrupts: „… the untrusted hypervisor is still responsible for resource and configuration management. Consequently, the hypervisor also manages interrupts for CVMs. In Heckler, the hypervisor uses malicious interrupts to compromise the security of the CVMs. Our insight is to use the interrupt handlers that have global effects, such that we can manipulate a CVM’s register states to change the data and control flow.“",
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