Slashdot Mirror
After Intel ME, Researchers Find Security Bug In AMD's SPS Secret Chip-on-Chip (bleepingcomputer.com)
An anonymous reader writes: AMD has fixed, but not yet released BIOS/UEFI/firmware updates for the general public for a security flaw affecting the AMD Secure Processor. This component, formerly known as AMD PSP (Platform Security Processor), is a chip-on-chip security system, similar to Intel's much-hated Management Engine (ME). Just like Intel ME, the AMD Secure Processor is an integrated coprocessor that sits next to the real AMD64 x86 CPU cores and runs a separate operating system tasked with handling various security-related operations.
The security bug is a buffer overflow that allows code execution inside the AMD SPS TPM, the component that stores critical system data such as passwords, certificates, and encryption keys, in a secure environment and outside of the more easily accessible AMD cores. Intel fixed a similar flaw last year in the Intel ME.
The security bug is a buffer overflow that allows code execution inside the AMD SPS TPM, the component that stores critical system data such as passwords, certificates, and encryption keys, in a secure environment and outside of the more easily accessible AMD cores. Intel fixed a similar flaw last year in the Intel ME.
It seems that particular AMD bug can by disabled/bypassed by a BIOS/UEFI update, so the suggestion is still valid.
#DeleteFacebook
No it isn't the same. Until you show me that it can be used through a network attack. While it is a security bug it's relevant to a TPM boot chain.
Who is using TPM? I've considered getting one at home just to play around with it.
To me TPM has been in perpetual development because of bugs. And honestly until there are BIOS setting which enable ME to manage all of it's keys then I will never trust it.