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points by mjg59 2 days ago | 0 comments
Yeah I'm actually not terribly worried about the server scenario, but having a way to get code exec in the firmware lets you defeat measured boot, which means this is a Bitlocker bypass in the default config.
[–] reorder9695 2 days ago
Would this mean any TPM based decryption keys could potentially be compromised in this kind of attack? E.g. when they're used for LUKS disk encryption.
[–] mjg59 2 days ago
Yup, if there's no passphrase involved.
[–] rocqua 1 day ago
Even if there is a passphrase, this would likely allow for brute-forcing it.
[–] mjg59 1 day ago
No, you'll still have the TPM's dictionary attack lockout.