this post was submitted on 05 Dec 2023
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True, but that doesn't necessarily matter if I can compromise the privileged app instead. I could replace it, modify it on disk, or really any number of things in order to get myself a hook into a privileged position.
Just injecting code in some function call which launches
malware.exewould do the trick. Ofc signature checks and the like can help here - but those aren't a given. There's any number of ways you can elevate yourself on a system based off of user security if your threat model is malicious processes. Linux (and windows) will stop users from accessing each other's crap by default, but not processes.Or: supply chain attacks. Now your official app without any modifications is malicious.