Tag: Heracles

Researchers at ETH Zurich have unveiled a novel attack against AMD’s SEV-SNP hardware isolation mechanism, enabling a hypervisor-level adversary to extract sensitive data from protected virtual machines. Dubbed Heracles, the attack demonstrates how to construct a chosen-plaintext oracle capable of decrypting memory contents with single-byte precision. AMD SEV-SNP (Secure Encrypted Virtualization – Secure Nested Paging)…