oxidecomputer / oxidecomputer/hubris
Detect and report programmed unused flash in the RoT
Nobody has claimed this yet.
- Dominant language
- Rust
- Stars
- 3.6k
- Forks
- 239
- Avg merge
- 1d 12h
- Merged PRs (30d)
- 23
Description
We have data exfiltration as part of our threat model.
There are unused portions of flash in the RoT
We could add to chips/lpc55/memory.toml for any unused flash pages:
[[flash]]
name = "unused"
address = 0x90800
size = 0xf800
read = true
write = false
execute = false
We can report the fact that there is at least one unused programmed page or the number of unused programmed pages.
It's probably not a good idea to report the hash over the unused programmed pages.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading chips/lpc55/memory.toml and tracing how flash regions are represented and reported. Done means detecting programmed data in the declared unused pages and reporting either its presence or count, without exposing a hash; the issue names no test or reporting entry point.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- embedded-iot, security
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100