#interposer-attacks

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Information security
fromThe Hacker News
1 day ago

New WireTap Attack Extracts Intel SGX ECDSA Key via DDR4 Memory-Bus Interposer

Intel SGX protections on DDR4 can be bypassed using a physical interposer (WireTap) to extract attestation/ECDSA keys and decrypt enclave data.
fromArs Technica
2 days ago

Intel and AMD trusted enclaves, the backbone of network security, fall to physical attacks

In the age of cloud computing, protections baked into chips from Intel, AMD, and others are essential for ensuring confidential data and sensitive operations can't be viewed or manipulated by attackers who manage to compromise servers running inside a data center. In many cases, these protections-which work by storing certain data and processes inside encrypted enclaves known as TEEs ( Trusted Execution Enclaves)-are essential for safeguarding secrets stored in the cloud by the likes of Signal Messenger and WhatsApp.
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