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submitted 8 months ago* (last edited 8 months ago) by lseif@sopuli.xyz to c/android@lemmy.world

I'm lucky my banking app works (GrapheneOS), as it's now requiring 2FA with the app anytime I login on the browser. Can't use an actually secure form like TOTP. At least they now allow passwords over 8 characters (yes, serious).

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[-] viking@infosec.pub 51 points 8 months ago

Magisk plus DenyList luckily works for my banks. Couldn't imagine not having a rooted phone.

[-] PoorPocketsMcNewHold@lemmy.ml 7 points 8 months ago

Beat the main purpose of GrapheneOS. Open the phone to a broad lot of security issues.

[-] viking@infosec.pub 27 points 8 months ago

Graphene only works for Pixel phones, and I don't want a Google device.

[-] lseif@sopuli.xyz 5 points 8 months ago

thats fair. device support is a major downside of GOS. but, remember: its not really the fault of the OS, as it requires a lockable/unlockable bootloader, which only pixel phones provide (at least in terms of mainstream phones). blame the OEMs like samsung

[-] viking@infosec.pub 4 points 8 months ago

There are a ton of unlockable bootloaders. On my OnePlus that's a matter of flipping a switch in the settings.

[-] lseif@sopuli.xyz 4 points 8 months ago

can it be re-locked? i may be wrong, btw. this is just what ive heard.

[-] viking@infosec.pub 0 points 8 months ago

I don't know, never tried that.

[-] PoorPocketsMcNewHold@lemmy.ml 1 points 8 months ago

That's the main issue really, as it open the possibility to manage your device for anyone getting hold of it. Probably some debug attack methods also with it.

[-] deweydecibel@lemmy.world 3 points 8 months ago* (last edited 8 months ago)

which only pixel phones provide (at least in terms of mainstream phones)

Mainstream phones? Pixel is a smaller market share than Motorola, and Motorola has unlockable bootloaders, and lineage supports a fair number of them.

I thought Google owned Motorola, but I missed the sale to Lenovo ten years ago.

[-] BaardFigur@lemmy.world 2 points 8 months ago

Lenovo owns Motorola. Lenovo being chinese is somewhat a security risk.

[-] PoorPocketsMcNewHold@lemmy.ml 1 points 8 months ago

Sadly, can't be re-locked. Would have loved to get a Motorola if it was.

[-] Azzu@lemm.ee 15 points 8 months ago

What are the security issues? Rooted just means the potential to give trusted apps root access. Of course, if you give an app root access that you trust but is then abusing that trust and being malicious, yes it's a security issue. But if you don't do that, the simple fact of having a rooted phone should have no security change in any way. (Ok, except for potential bugs in Magisk/su or whatever)

[-] deweydecibel@lemmy.world 17 points 8 months ago* (last edited 8 months ago)

The whole issue revolves around the fact Google is presuming a device is compromised or being used for illicit shit simply because root access is possible. If they put in effort to detect/prevent the actual problems they're concerned about, this wouldn't be as big a deal. This broad punishment for simply having root access is lazy and ridiculous.

It's like if Windows apps just stopped working if they detected a local admin account. It's patently absurd to assume the ability to access anything means the device is inherently "unsafe".

[-] Azzu@lemm.ee 5 points 8 months ago

But the previous commenter talked about security issues, you're only talking about usability issues.

[-] PoorPocketsMcNewHold@lemmy.ml 2 points 8 months ago* (last edited 8 months ago)

https://www.reddit.com/r/GrapheneOS/comments/13264di/comment/ji54e19/?utm_source=share&utm_medium=mweb3x&utm_name=mweb3xcss&utm_term=1&utm_content=share_button

If you have the UI layer able to grant root access, it has root access itself and is not sandboxed. If the UI layer can grant it, an attacker gaining slight control over it has root access. An accessibility service trivially has root access. A keyboard can probably get root access, and so on. Instead of a tiny little portion of the OS having root access, a massive portion of it does.

In the verified boot threat model, an attacker controls persistent state. If you have persistent root access as a possibility then verified boot doesn't work since persistent state is entirely trusted.

A userdebug build of AOSP or GrapheneOS has a su binary and an adb root command providing root access via the Android Debug Bridge via physical access using USB. This does still significantly reduce security, particularly since ADB has a network mode that can be enabled. Most of the security model is still intact. This is not what people are referring to when they talk about rooting on Android, they are referring to granting root access to apps via the UI not using it via a shell.

[-] Azzu@lemm.ee 1 points 8 months ago

I'm pretty sure whoever wrote that was talking out their ass. The fuck is "UI layer" on Android, or rather, what does it have to do with it xD

[-] PoorPocketsMcNewHold@lemmy.ml 1 points 8 months ago* (last edited 8 months ago)

The actual Magisk prompt that ask you if you want to give root to such app. This UI layer.

Although, i suppose it could be countered by explicitly refusing all requests or enabling a biometric confirmation

[-] Azzu@lemm.ee 1 points 8 months ago

But granting root is not done by "the UI layer", "the UI layer" is not running with root. There is no such thing as "the UI layer" as a separate entity, an app can have a UI layer as part of its architecture, but the UI is not running on its own. Just because Magisk shows you a UI for you to grant/deny a root request, that doesn't make it insecure. Nothing is able to interact with this prompt except the Android kernel/libraries itself and Magisk.

Only if you added an application as accessibility tool (or give it root) can it interact with anything within the UI. An app with a UI is generally not much different than an app on the command line.

[-] PoorPocketsMcNewHold@lemmy.ml 1 points 8 months ago

It still create an attack vector, as it allows a potential extra method to get access to it, in addition of potential hardware exploits that i shared to gain root. Yes, you can minimize the risks correctly, but the user is the only real barrier against it, not the software anymore. The less potential way to exploit your phone, the better it is. You shouldn't rely on thinking that such feature is fully attack-proof.

[-] RVGamer06@sh.itjust.works 7 points 8 months ago

don't give root to any app duh

[-] Engywuck@lemm.ee -1 points 8 months ago

Non-rooted phones are just like iPhones. Ewww...

[-] LoremIpsumGenerator@lemmy.world 4 points 8 months ago

Like bicycles with training wheels.

[-] RaoulDook@lemmy.world 1 points 8 months ago

Can you compile your own OS from source for an iPhone and install it yourself? I don't think so.

I have done that with my non-rooted android, and I can do anything I want with my phones through the powers of open source software.

Rooting is unnecessary now and that's a good thing.

[-] davidgro@lemmy.world 8 points 8 months ago

You can't do that without unlocking the bootloader, and that alone will trip "root detection" (Play Integrity).

Some apps take it further and won't run if you enable Developer Options! (Or have any number of "hacking apps" installed, such as autotap apps that don't even need root.)

[-] RaoulDook@lemmy.world 1 points 8 months ago

Yes, I am aware of how it works. Unlocking the bootloader is not the same as rooting, and all my apps work just fine.

[-] davidgro@lemmy.world 5 points 8 months ago

If they work with an unlocked bootloader then they would almost certainly also work fully rooted, with the advantages that brings (such as actual working app+data backups, limiting max battery charge, better automation possibilities with apps like Tasker, etc)

I'd much rather switch banks than give up rooting my phone.

[-] deweydecibel@lemmy.world 5 points 8 months ago

Who cares if it's necessary? If people want to do it, they should be able to, without punishment.

[-] kratoz29@lemm.ee 1 points 8 months ago

Rooting is unnecessary now and that's a good thing.

Rooting is always necessary, you can't convince me otherwise, imagine not having root permissions in your Windows, Linux or macOS machine...

Without "rooting" capabilities we wouldn't have custom firmware for tech that is quite locked (like the PSP, Vita, 3DS and whatever OS they use), emulation would not be the same.

Heck, even some iOS versions can be jailbroken yet, I cannot conceive a world where iOS is less locked than Android.

You need to be the one who decides how your hardware is managed.

this post was submitted on 07 Mar 2024
643 points (96.0% liked)

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