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this post was submitted on 23 Jul 2023
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Android
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Indeed not. So I'm trying to better understand how vulnerabilities at the system level are exploited. It seems like the attack surface is limited to RF (bluetooth/wifi can be turned off if one is willing to make that compromise), app install (many just use a small selection of well-trusted apps), and messaging/browser which are regularly updated if the device is properly configured.
Based on this thread I'm beginning to form the opinion that it is not unreasonably foolhardy for someone to continue to use an unsupported device if they are willing to make the compromises necessary to limit their attack surface.
It’s a bit hard to find the details of the vulnerabilities let alone POCs.
I would assume the APIs provided by android use the underlying system libraries so if left unpatched then any app that makes use of the APIs could potentially be an attack surface? This is all my assumption and it would be nice for someone that specialises in Android security to comment.
The app, in the scenario where we're trusting the author/store, is only part of the surface to the extent it's exposed to a potentially malicious payload. eg. a trusted solitaire game using a vulnerable API doesn't exacerbate that vulnerability because it doesn't expose it to untrusted input whereas a PDF viewer would because the PDF could be coming from anywhere...