Privacy

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A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

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Signal leaked random contacts to me! (feddit.de)

submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/[email protected]

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When I press on some message to forward it, it shows me Random usernames of contacts I don't know. And it even shows some Mobile Numbers I don't know. For example, one number starts with +964 that's Iraq. I'm from Europe tho. These contacts and numbers are from all over the place.

Edit: This only happens on Signal Desktop. If I try to forward a message on Android it only shows my Contacts. And none of these unkown ones.

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[–] [email protected] 1 points 9 months ago* (last edited 9 months ago)

This is super helpful, I may post this to infosec.exchange. Flathub makes this so much more difficult to find the reason for what looks like a real breach. I don't use Flathub for security reasons so I don't know if you can even isolate the PID? Anyone know?

I don't want you to have to spend a lot of time or troubleshoot over the web but if you see anything that stands out as "wow shouldn't be there/running" when you run these commands come back to us:

ps the PID of Signal or secondarily, Flathub
lsof -p PID
strace
- sudo strace -f -t -e trace=file -p PID
sysctl kernel.randomize_va_space
- pkill/killall Flathub/Signal and restart FH/Signal and see if it still presents the vulnerability