Spyke
lemmy.world

Does anybody configure their phone to automatically scan photos for QR codes and visit the links?

72
zurohkireply
aussie.zone

When my phone's barcode reader app sees a web link, it fetches the page's title to display next to the actual link. So it is going to that web server and fetching resources by itself. Even though it isn't actually rendering the page and running javascript, it might be exploitable.

23
lemmy.world

But that's the barcode app - is it always running, looking for barcodes in all the photos you take? Because there are already shirt with giant barcodes on them - presumably just artistic with no meaning, but who knows?

7
zurohkireply
aussie.zone

is it always running, looking for barcodes in all the photos you take?

Has Google's camera app added that yet? If not it's only a matter of time.

8

I have a shirt with a QR code that goes to a Rick roll. It doesn't work nearly as well as I'd hoped. Even people trying to scan it have a hard time, forget about anyone scanning it unknowingly. Mr. Astley did in fact let me down.

6

My camera brings up the links/data in any QR code that's in the shot, I would have to fatfinger it and click the link (twice, because it asks you to confirm that you want to open the link) though

6
Frogreply
lemmy.ca

I think as a precaution, barcode scanners stopped automatically going to links.

Even if a link isn't malicious, you can still get someone's IP address or device fingerprint.

20

I configure my phone to automatically follow the links from scammer texts.

6

My phone's camera app just doesn't scan qr codes. It's actually really frustrating. I refuse to install a specific qr scanner, but I'd still like the ability to scan a menu code at restaurants or to get the WiFi connection at a hotel....

3

Not sure but I think QR codes that hold wi-fi creds would more likely be automatically processed by phones. Seems like an adequate attack surface. Maybe dodgy creds could overflow or do some kind of DB attack. Or even legit creds could lead someone to connect to a malicious hot-spot captive portal that the attacker carries.

1
lemmy.sdf.org

Except if they were halfway intelligent they wouldn't have it go automatically to the site.

And when you do this and something goes really wrong criminal charges get laid.

50
sopuli.xyz

I'm not sure if you could actually get criminal charges for this unless you were hosting the malware in which case that's another issue. It would essentially be the same as walking around with a website URL on your shirt. The observer is responsible for typing in the URL or scanning the code and what they decide to do on the website that follows.

50

Same argument for having it direct you to somewhere like meatspin. Can't be distributing porn to minors.

3
Malfeasantreply
lemm.ee

I tend to agree that this is how it should be, that doesn't mean that's how it is. If you walk around with a T-shirt that says "kill all CEOs" along with where to find them, you're going to run into some trouble, despite being a similar situation- you're just giving instructions, it's up to the viewer what to do with them.

2

Except the shirt doesn't say "visit this site, there are cool things on it". If you're gonna make the comparison to CEOs then it would be like putting a CEOs address on your shirt.

1

Often the apps are from what I know. Most ones I've used don't open the link straight away

4
HalfAHeroreply
lemmy.world

Can we just get a website that plays a soundbite at full volume screaming about how they person is bad at privacy practices, maybe with Korn in the background for maximum embarrassment?

6

Finally a good use for these music generator AIs

1
cdf12345reply
lemm.ee

Criminal charges? It’s called the 1st amendment bro.

3
HikingVetreply
lemmy.sdf.org

Not if it incites violence, causes harm or any of the other carve outs in the first amendment of the USA.

I am aware that the post is supposed to be funny, and you are most likely making a joke, but this is the internet and these sort of disclaimers tend to be necessary.

6

A smart attack would be coupled with a clear message. Have the malware clobber them with anti-evil messages and just like that you have a sound free speech defense.

1
lemmy.world

I knew what it would be. I still grabbed my phone. I saw youtube. I still clicked it.

31

If you immediately thought of goatse when imagining the results of a link prank it probably means you have some lingering trauma from using the internet when the last century was old or when this one was new, as many here do. If you immediately thought of goatse when someone asked you what your plans for your birthday are, that might be an issue.

8

The largest QR code can hold up to 3 kb of data, which is more than enough to write a nasty virus in an injectable script if aimed at specific devices/apps. The main hurdle is breaking the app to execute the code instead of treating it as a string. It's the Drop Bobby Tables joke. Developers hopefully don't fall for this anymore.

Anyway. Making a shitty link and leading people there isn't a new idea. You don't even need a t-shirt. Hackers already place their own printed QR labels on top of otherwise real codes, and the user might not even notice, because they'll be redirected to the right site after the dirty deed is done dirt cheap.

15
lemmy.world

here's an idea : let it redirect to a URL but with it's query params tweaked so it automatically attempts an SQL injection on the website when loading

10
lemm.ee

Depending on what they plan to use the video for, a middle finger can be sufficient.

6

Having worked in TV news, I’ve long thought the way arrested politicians or whoever that are trying to avoid being filmed leaving a courthouse by holding a folder or coat in front of their face should instead just hold both middle fingers up right in front of their face. The image won’t be used, and if it is, it will make it very clear how they feel about the citizens.

2

So I thought I pulled a great prank once. I made a QR code that directed to lemonparty. I used an online sticker service's free trial to print a bunch up with my friend's Instagram at the bottom. I travel all over for work so I was going to put them everywhere.

My problem was I printed them in yellow and they wouldn't scan. I told my friend and he thought it was a funny idea just like I knew he would, not a malicious prank. Wish it had worked.

2