Bug: crash Message application by MMS on iOS

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Introduction

Hey ! After EverythingApplePro revealed my bug, I think it’s important to explain how it works. This exploit works on Apple devices running iOS 8 to iOS 10.2.1 b2 (patched in beta 3).

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First, if you haven’t heard about my bug, check out this video !

 

Warning and Disclaimer: Don’t try this if you don’t know what you do, I am not responsible if you break your device.

  1. Download the file here
  2. Upload it to iCloud Drive, Dropbox etc.. (if you want to keep it)
  3. Share the file to send it via Message
  4. Send it to your unsuspecting victim
  5. When they click on it, their Messages application will freeze and don’t work anymore.
  6. Send them this magical link to fix the problem.


How does it work ?

It’s lot of text loaded by iOS and crash the app.

When your victim click on the message, their Messages app will attempt to load a large amount of data that couses the system malfunction. However the text in the file is very complicated for the system and causes a CPU average and freezing the app.  If you close the app and try to reopen it, iOS will try to reload the previous message but can’t because it’s the same file containing too much text for the system to handle properly.

 

All of the code is here:

VCF file: vincedes3.com/vincedes3.vcf

Fix link: vincedes3.com/save.html

Another fix: See the post on Twitter

Another fix 2: See the post on Twitter

There seems to be a problem with some iPads where the fix does not work. I can’t do anything about this unfortunaly :/ Try the alternate fix or contact me by the contact section or on my Twitter.

Jailbroken devices appear to be protected but I don’t know why.

Code in .txt format: vincedes3.com/crashtext.txt

Code in HTML (for copy on iOS): vincedes3.com/crashtext.html

My video of demo:

 

Thanks to William for the help (english translation).

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18 thoughts on “Bug: crash Message application by MMS on iOS

  1. Donovan Bolte

    hey man. so i sent it to my friend to test it out through my ipad bc my phone is messed up, and it sent to her, but it ended up crashing my messages app as well. i tried the fix you suggested, and it ends up opening my messages app, but then it just freezes again. it’s closes the keyboard too. and if i close the app and reopen it, it doesn’t do anything. remember i’m using a ipad so i don’t know if it works with the ipad or not. please help me with this!

  2. Ayman

    I have an issue when i click the website to download the file/contact it only says “open in contacts” and won’t show me the other “open in” feature..

  3. Eric

    I send the contact to me but whenever I open it it won’t load but it will load my iMessage app and I am still able to text people with the contact sent to me. I just can’t open up the message. Don’t know if my phone is too fast or what but it doesent work for me.

  4. Brendan

    I am able to download this fine, but when I try to send it trough messages, it does it work it gives my phone a blank screen and will not allow messages to open to send it

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