Software Grand Exposure: SGX Cache Attacks Are Practical

Understand

Side-channel information leakage is a known limitation of SGX.

• Researchers have demonstrated that secret-dependent information can be extracted from enclave execution through page-fault access patterns.
• Consequently, various recent research efforts are actively seeking countermeasures to SGX side-channel attacks.
• It is widely assumed that SGX may be vulnerable to other side channels, such as cache access pattern monitoring, as well.