HN user

pgo

238 karma
Posts12
Comments36
View on HN

This is expected right, HTTP is not only used for human consumable web applications but for API servers as well

The bulk of these would just be embedded devices running multiple API services, like port 7547 highlighted in the article is your typical TR-069 service running on most consumer internet routers

I would argue most non-API/non embedded devices web applications would still be running on 80 and 443

So under the hood it's chromium headless and you are streaming screenshots back using an extension

Curious why not run normal chromium and vnc the whole screen back using a web client such as novnc, would have solved most of your "Normal Browser UI things not yet implemented"

Cool diagram. Putting the shellcode in headers is very innovative. I didn't have too much assembly knowledge to trim it further during the competition.

I once wrote an ELF by hand for a CTF challenge. The challenge was to have an shared library such that when it is passed to LD_PRELOAD it spawns a shell by execve

LD_PRELOAD=<ELF> /bin/true

The constraint being the ELF needed to be less than 196 bytes so obviously it could not be created by gcc. In the end I could not believe it ran, considering the amount of hacks that I had to do to trim it to 193 bytes.

https://github.com/TeamGreyFang/CTF-Writeups/tree/master/Pla...

The rooting process is actually very standardized. On most of the phones you just have to patch a su manager tool called Magisk[1]. Its open-source and been under a lot of eyes.Also the dev works at apple and is a community favorite.

Custom roms are a lot more risky, there are 100s of different flavors made by relatively unknown developers and even though they are technically open source, I find it highly unlikely that none of them contain malware. I mean you can introduce a memory corruption bug in few handful characters, these custom roms are practically unauditable.

1. https://github.com/topjohnwu/Magisk

Legal, encouraged and rewarded. Bug bounty programs allow hackers doing these kind of explorations. Although most programs advise you not to do anything once you get code execution as it might break things on production, so the final part where they started intercepting traffic might not be something I would do, but they took a calculated risk, that this is is docker container that does no critical work and it would be interesting to see if we could break out of it. So that's fine.

You can read up more of such reports at hackerone.com/hackitivity or just searching about bug bounty writeups for X organization

Similar thing happened to me, I had 1/8 ounce weed in my hand bag I unknowingly packed, flew in from Los Angeles -> China -> India. I went through rigorous security checks with police dogs and fully body scanners at both LA and China. I panicked when I opened my bag when I reached home.

Its less about structure and more about use cases. In my opinion there are only two major uses of data collection by organizations - Machine learning training data and targeted advertisements. A federated fully homomorphic system will allow these companies to train their models without invading personal privacy.

It will also allow organizations to train models collaboratively in a privacy preserving way, which if you think about it has lot of consequences.

No disorders, No family history of diseases except diabetes in a few older ones. All of us got over corona with just a little fever except him. Well we cant even say with confidence what is happening with him is due to corona, it could be two different diseases coinciding at the same time.

My family got corona positive last month, around the same time my brother started having some neurological issues. The doctors after seeing the MRI did not detect any issues. The same was confirmed by other radiologists and multiple other MRI scans over the month. Yet he faces these issues: nausea,headache,confusion,weakness,ataxia (unsteady walk) sensory changes, including numbness or tingling,trouble with vision (one eye doesn't move / change focus as much as quickly as the other eye ). All these issues point to a brain infection yet none is detected.

There is no good metric for comparing test rates as well, tests per million makes no sense when a lot of states within the country have almost zero cases. India's less than 5% positive ratio on tests even in hotspot regions do not indicate a massive lack of testing.

The Indian rollout has been extremely slow, Stripe launched the beta in December 2017 and still hasn't come out of preview. What kind of challenges did you face that delayed the launch by more than two years?