[–] 4 points 1 month ago (6 children)

Cleatext signing (having the signature and data in the same file) is broken in many ways. It is possible to put unsigned data at the top of the file in a way that sha256sum will use it. Watch the 39c3 GPG talk if your interested in the gory details.

The solution is to use detached signatures (checksum.txt and checksum.txt.gpg to verify that). This makes sure that all of checksum.txt is actually covered by the signature.

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  • [–] 3 points 5 months ago*

    This has nothing to do with meshcore as a protocol, the problem is that some HA addons don't treat untrusted input properly. The malicious name could have been transmitted via meshtastic or carrier pigeon, if another addon did the same dumb thing.

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