Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#1

Post by clubdorothe » Sat, Aug 07, 2021, 7:53 AM UTC

Everything has changed in iOS 14, but Jailbreak is eternal [pdf]
i.blackhat.com

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#2

Post by hr2016 » Sat, Aug 07, 2021, 3:55 PM UTC

I see many submissions from blackhat.com are direct PDF links, but that does not make me feel very comfortable.

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#3

Post by quenix » Sat, Aug 07, 2021, 3:58 PM UTC

hr2016 wrote: post #2

I see many submissions from blackhat.com are direct PDF links, but that does not make me feel very comfortable.

Why?

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#4

Post by Quarrel » Sat, Aug 07, 2021, 4:13 PM UTC

hr2016 wrote: post #2

I see many submissions from blackhat.com are direct PDF links, but that does not make me feel very comfortable.

It's a conference.

The presentations get published.

Isn't this totally normal?

I mean, sure it'd be totally blackhat to publish a brand new pdf exploit this way, but blackhat as a conference went way beyond those roots a long time ago.

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#5

Post by haswell » Sat, Aug 07, 2021, 4:14 PM UTC

quenix wrote: post #3

hr2016 wrote: post #2

I see many submissions from blackhat.com are direct PDF links, but that does not make me feel very comfortable.

Why?

I suspect they're concerned about the PDF format, which has been used in the past to deliver malicious payloads.

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#6

Post by bradleykingz » Sat, Aug 07, 2021, 4:35 PM UTC

hr2016 wrote: post #2

I see many submissions from blackhat.com are direct PDF links, but that does not make me feel very comfortable.

Me too.

My guess is that my brain has subconsciously tuned out engaging pdf content because of how difficult it is to use in-browser... Especially when dealing with text sizes and zooming sigh. It's even worse with pdfs on mobile :(

Also the sudden break from "website" to "pdf" format is often jarring.

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#7

Post by gerdesj » Sat, Aug 07, 2021, 4:37 PM UTC

Great write up and very well presented. All in all a bit disturbing but that's what you should get from Blackhat.

"Started macOS/iOS security from the second half of 2019"[!]

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#8

Post by asddubs » Sat, Aug 07, 2021, 4:57 PM UTC

bradleykingz wrote: post #6

hr2016 wrote: post #2

I see many submissions from blackhat.com are direct PDF links, but that does not make me feel very comfortable.

Me too. My guess is that my brain has subconsciously tuned out engaging pdf content because of how difficult it is to use in-browser... Especially when dealing with text sizes and zooming sigh . It's even worse with pdfs on mobile :( Also the sudden break from "website" to "pdf" format is often jarring.

i prefer to let it download and just use a dedicated viewer, cuts down on the sluggishness as well.

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#9

Post by mirkules » Sat, Aug 07, 2021, 5:13 PM UTC

haswell wrote: post #5

quenix wrote: post #3

Earlier quoted context omitted.

Why?

I suspect they're concerned about the PDF format, which has been used in the past to deliver malicious payloads.

If there is concern there, use a reader without javascript or an online converter from PDF to another format.

Re: Everything has changed in iOS 14, but Jailbreak is eternal [pdf]

#10

Post by wycy » Sat, Aug 07, 2021, 5:43 PM UTC

gerdesj wrote: post #7

Great write up and very well presented. All in all a bit disturbing but that's what you should get from Blackhat. "Started macOS/iOS security from the second half of 2019"[!]

What’s disturbing about it? I didn’t understand the slides or the implications thereof well enough to actually figure that out.