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Codex Hacked a Samsung TV

blog.calif.io

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Re: Codex Hacked a Samsung TV

#33
post #21

Earlier quoted context omitted.

Hyperbole.

It's really not. It was a fun toy but had very little utility. It could generate plausible looking text that collapsed immediately upon any amount of inspection or even just attention. Code generation wasn't even a twinkle in Altman's eye scanning orbs at that point.

Talking about revisionist…

Re: Codex Hacked a Samsung TV

#35

I had truly good “hacking” session with Codex. It’s not hacking, I wasn’t breaking anything, just jumping over the fences TP-Link put for me, owning the router, inside the network, knowing the admin password. But TP-Link really tried everything so you cannot access the router you own via API. They really tried to be smart with some very very broken and custom auth and encryption scheme. It took some half a day with C…

Any tips to share? I tried to do something similar but failed.

My router has a backup/restore feature with an encrypted export, I figured I could use that to control or at least inspect all of its state, but I/codex could not figure out the encryption.

Re: Codex Hacked a Samsung TV

#36
post #28

Earlier quoted context omitted.

Reasoning on pure machine code or disassembly is still hit and miss. For better results you can run the binary through a disassembler, then ask an llm to turn that into an equivalent c program, then ask it to work on that. But some of the subtleties might get lost in translation

If you put codex in Xhigh and allow it access to tools, it will take an hour but it will eventually give you back quality recompiled code, with the same issues the original had (here quality means readable)

I had a bit of a pain of a time trying to get Claude to work with ghidra. What you’re describing seems like a better alternative, would you agree?

Re: Codex Hacked a Samsung TV

#37

I had truly good “hacking” session with Codex. It’s not hacking, I wasn’t breaking anything, just jumping over the fences TP-Link put for me, owning the router, inside the network, knowing the admin password. But TP-Link really tried everything so you cannot access the router you own via API. They really tried to be smart with some very very broken and custom auth and encryption scheme. It took some half a day with C…

Any tips to share? I tried to do something similar but failed. My router has a backup/restore feature with an encrypted export, I figured I could use that to control or at least inspect all of its state, but I/codex could not figure out the encryption.

It's on my long list of projects "to-opensource" (but I need to figure out licensing, for those things CC-BY-SA I think is the way to go), I don't want a random lawyer sitting on my ass though.

I started with a simple assumption: if I can access the router via web-browser, then I can also automate that. From that the proof-of-concept was headless Chrome in Docker and AI-directed code (code written via LLM, not using it all the time) that uses Selenium to navigate the code. This worked, but it internally hurt me to run 300MiB browser just to access like 200B of metrics every 10s or so. So from there we (me + codex) worked together towards reverse engineering their minimised JS and their funky encryption scheme, and it eventually worked (in the end it's just OpenSSL with some useless paddings here or there). Give it a shot, it's a fun day adventure. :)

Edit: that's the end result (kinda, I have whole infra around it, and another story with WiFi extender with another semi-broken different encryption scheme from the same provider) - https://imgur.com/a/VGbNmBp

Re: Codex Hacked a Samsung TV

#38
Not as cool as this, but I had a fun Claude Code experience when I asked it to look at my Bluetooth devices and do something "fun". It discovered a cheap set of RGB lights in my daughter's room (which I had no idea used Bluetooth for the remote - and not secured at all) and made them do a rainbow effect then documented the protocol so I could make my own remote control if needed.

Re: Codex Hacked a Samsung TV

#39

I had truly good “hacking” session with Codex. It’s not hacking, I wasn’t breaking anything, just jumping over the fences TP-Link put for me, owning the router, inside the network, knowing the admin password. But TP-Link really tried everything so you cannot access the router you own via API. They really tried to be smart with some very very broken and custom auth and encryption scheme. It took some half a day with C…

that could make a for a nice blog / gist

Re: Codex Hacked a Samsung TV

#40

I had truly good “hacking” session with Codex. It’s not hacking, I wasn’t breaking anything, just jumping over the fences TP-Link put for me, owning the router, inside the network, knowing the admin password. But TP-Link really tried everything so you cannot access the router you own via API. They really tried to be smart with some very very broken and custom auth and encryption scheme. It took some half a day with C…

Would definitely be interested in this. Moved to TP Link at the start of the year and I am generally very happy with it, but would like to be able to interact with my router in something other than their phone app.
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