3 ms·

The "CMOS" on the same bus as the TPM was Macronix Serial Multi I/O (MXSMIO™) Flash https://www.mxic.com.tw/en-us/products/NOR-Flash/Serial-NOR-Flash/Pages/spe

• lostmsu 5y ago
  The issue is not the CMOS chip, it is how the motherboard vendor choose to connect it.
  • basicplus2 5y ago
    Yes i know... i was just surprised it was referred to as the "CMOS" my curiosity got the better of me and i looked it up and thought other people might be curious too, and I thought it might save people time if I gave the details
  • jaclaz 5y ago
    But the connection only make "easier" to connect to much larger pins, a determined attacker would be able to connect to the SPI bus even on the teeny-tiny TPM cheap directly, it's only a matter of having some more sophisticated hardware, risking doing a chip-off, etc. Only as an example (and not actually usable in this case unless a chip-off is done), there is what I call a cross-breed between an octopus and a acupuncturist: https://blog.acelaboratory.com/pc-3000-flash-spider-board-adapter-how-to-use-it.html https://blog.acelaboratory.com/pc-3000-flash-spider-board-ad...