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What cant be hacked these days? Monitor vulnerability.

WereCat
By WereCat
in Tech News
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Source: https://www.defcon.org/html/defcon-24/dc-24-speakers.html#Cui

 

Quote

OSDs are effectively independent general-purpose computers that can: read the content of the screen, change arbitrary pixel values, and execute arbitrary code supplied through numerous control channels.

 

This code infiltration technique can be implemented through a single pixel, or through subtle variations of a large number of pixels. We discuss a step-by-step walk-through of our hardware and software reverse-analysis process of the Dell monitor. We present three demonstrations of monitoring exploitation to show active screen snooping, active screen content manipulation and covert data exfiltration using Funtenna.

 

Lastly, we discuss realistic attack delivery mechanisms, show a prototype implementation of our attack using the USB Armory and outline potential attack mitigation options. We will release sample code related to this attack prior to the presentation date.

 

This is a reaaally long article so I am not going to quote anything more, if you want to read go ahead. I will however put a quick summary of what is going on here:

 

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One of the way how they exploited monitor is by using the firmware update route which is usualy left open by the manufacturer. This exploit reprograms your CPU inside monitor that controlls the OSD to change your displayed image or accept informations from normaly displayed image.

These hackers were able to demonstrate how they changed displayed PayPal website directly with the monitor CPU and they changed the account balance from zero $ to one billion $.

Though monitor is device that can usualy accept only inputs the hackers were able to make it send data back to attackers with the method called Funtenna. Monitor CPU is generating electro-magnetic signal by quick switching of GPIO pin, which on tested monitor resulted in 15.3MHz signal. How long the range is is not clear yet.

To hack this CPU the attacker must be able to run the code on connected computer from USB or HDMI port. Infection code needs root access in Linux. If the infection is permament or if by shutting down monitor from the power outlet will "remove" the infection is not clear yet.

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Holy feaking cow. This is prety serious exploit. They were able to demonstrate it on Dell moinitor with CPU chip from Genesis so I dont know if this exploit will be applicable to most other monitors but even so... this is freaking scary. Luckily I have no USB on monitor and I use DVI and VGA.

What do you guys think about this?

Sorry for possible errors.

 

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3 minutes ago, WereCat said:

What? I dont want to read kids!

 

Books cant be hacked indeed ... good luck browsing web with them though.

 

3 minutes ago, paprikman said:

I hope that you just missed one comma in last sentence... Otherwise it's kinda strange.

Forgive me internet, for I have sinned. I shall never use improper punctuation from henceforth.

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It shouldn't come as a surprise: As software (and I'm including OSDs to the definition of software) becomes more and more complex, hackers have more room for finding exploits. Which is why technology companies should never forget to refine their code. But this leads to more holes in security. It's a dog chasing its tail, really.

6 minutes ago, Dobbsjr said:

 

Forgive me internet, for I have sinned. I shall never use improper punctuation from henceforth.

Thou are forgiveneth. Now go and sin no moreth.

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6 minutes ago, Lehti said:

It shouldn't come as a surprise: As software (and I'm including OSDs to the definition of software) becomes more and more complex, hackers have more room for finding exploits. Which is why technology companies should never forget to refine their code. But this leads to more holes in security. It's a dog chasing its tail, really.

Thou are forgiveneth. Now go and sin no moreth.

Thank you. May GabeN's grace never leave you. Godspeed. 

Did my post help you? Then make sure to rate it!

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Yeah sure you can have that hacked and it Sucks.  But I still font get why someone would hack it in the first place.

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Nukes.

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1 hour ago, Dobbsjr said:

Books. Books can't be hacked. Read more kids. 

This just in.... "Books have been Hacked!"

 

Btw I thought of this idea, but haven't actually watched this link, so sorry if it's a crap video.

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Next up: smart pants rogue dialing hack

 

Yes, Google and Levi's are working on smart pants....

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Oh, come on, what's next, hacking my damn desk? I have an LED strip on it....I wonder if it's hackable...

 

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1 hour ago, Dobbsjr said:

Books. Books can't be hacked. Read more kids. 

But the publisher's printers can....

"We also blind small animals with cosmetics.
We do not sell cosmetics. We just blind animals."

 

"Please don't mistake us for Equifax. Those fuckers are evil"

 

This PSA brought to you by Equifacks.
PMSL

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Good. Hack everything. One day someone turns off the internet, completely and we world will burn in flames :D

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My camera. Im actually worried now though, I bet they could hack it

He who asks is stupid for 5 minutes. He who does not ask, remains stupid. -Chinese proverb. 

Those who know much are aware that they know little. - Slick roasting me

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Offical first poster LTT V2.0

 

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4 hours ago, Dobbsjr said:

 

from henceforth.

Redundant, henceforth already includes 'from', being synonymous with the expression "from now on".

In case the moderators do not ban me as requested, this is a notice that I have left and am not coming back.

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Hmm well my main monitor is connected via DP and that hack was demonstrated with certain monitor only and using USB or HDMI while also being present by monitor.
So I read it elsewhere before, TLDR; it could be done remotely too? :)

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We're still under war for some reason, oh yeah , Politics, that's the reason

Details separate people.

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53 minutes ago, Doobeedoo said:

Hmm well my main monitor is connected via DP and that hack was demonstrated with certain monitor only and using USB or HDMI while also being present by monitor.
So I read it elsewhere before, TLDR; it could be done remotely too? :)

Yes but the attacker must run the code on the PC connected to the monitor via USB or HDMI. Also he can then remotely receive data from monitor on very short distance.

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8 hours ago, Dobbsjr said:

Books. Books can't be hacked. Read more kids. 

They can be hacked to pieces with an axe.

▓ƆԀ▓ S▓₱▓Ɇ▓c▓s▓: i7 6ʇɥפᴉƎ00K (4.4ghz), Asus DeLuxe X99A II, GT҉X҉1҉0҉8҉0 Zotac Amp ExTrꍟꎭe),Si6F4Gb D???????r PlatinUm, EVGA G2 Sǝʌǝᘉ5ᙣᙍᖇᓎᙎᗅᖶt, Phanteks Enthoo Primo, 3TB WD Black, 500gb 850 Evo, H100iGeeTeeX, Windows 10, K70 R̸̢̡̭͍͕̱̭̟̩̀̀̃́̃͒̈́̈́͑̑́̆͘͜ͅG̶̦̬͊́B̸͈̝̖͗̈́, G502, HyperX Cloud 2s, Asus MX34. פN∩SW∀S 960 EVO

Just keeping this here as a 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Posted

If they have physical access to your stuff it's over regardless.

Don't ask to ask, just ask... please 🤨

sudo chmod -R 000 /*

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