So, as I said in the title.
Yesterday I smashed my MI 9 and bought MI 10.
Now the fun part. When I scan my Spark 2 or right-hand NExT everything is fine, but when I try to scan my left NExT screen just turns black with loading circle animation in the middle and after a few seconds it reboots into recovery mode.
Everything was fine on the MI 9.
Update: Iāve just rewritten the tag and everything seems fine, but I still have no idea what was going on.
Only change Iāve made was changing link from custom URL to http://www. in datasheet on the TagWriter app.
Lol for me http://www. results in āUnknown Tag Typeā while http://www works.
In theory itās a perfectly valid domain:
http protocol, host www and the . in the end should do nothing.
Someone could host a website on this link if he owns the .www tld.
If you can reproduce it you have founda nice little DoS
I think my other NExT has still the ācustom URLā, so maybe the exploit is actually theā¦ pornhub link I had in there xddd
I was showing the supreme capabilities to my friends
Androidās NFC stack is pretty fragile apparently. I found a really nifty way of freezing the UI with a simple vCard the other day. If you donāt know how to unlock it, you pretty much have to reboot the phone
I havenāt looked into it because Iām struggling to care really. But Iām pretty sure it would be fairly quick to find a way to thoroughly hose an Android cellphone with a properly crafted tag content. The intent system for NFC in Android tries to do so many things in the background before even handing control over to the user or the registered app that there has to be multiple ways of messing with it.