IoTGoat
elks
IoTGoat | elks | |
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4 | 25 | |
624 | 924 | |
4.2% | - | |
1.8 | 9.7 | |
over 3 years ago | 5 days ago | |
C | C | |
MIT License | GNU General Public License v3.0 or later |
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IoTGoat
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Concepts and subjects to focus on
On a related note, check out IoTGoat - it's a deliberately insecure IoT firmware image based on OpenWRT that you can use to explore a lot of common design flaws in embedded Linux devices: https://github.com/OWASP/IoTGoat
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We are cybersecurity researchers who wrote a book teaching people how to hack the Internet of Things, called Practical IoT Hacking. Ask us anything!
We have a chapter on methodologies in the book and go into a lot of detail on how we test. We also created the free OWASP IoT Goat project - a deliberately insecure IoT firmware that you can use for a testbed.
elks
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Damn Small Linux 2024
ELKS supported MMU-less operation on 8088 and 80286 machines, but I don't think an ARM port exists: https://github.com/ghaerr/elks
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SIIG MiniSys S286 Small Form Factor PC
Roughly in the mid-90s I bought at a local surplus store a "Carry 1" industrial 8088 computer which to my surprise I later discovered it could run Linux (ELKS: https://github.com/ghaerr/elks). I ultimately sold it on Ebay because although it was a beautiful piece of old tech, I was struggling to find more space for other things.
Here's one. I had only the central unit, mine had two floppy drives.
- ELKS Embeddable Linux Kernel Subset – Linux for 8086
- ELKS 0.70 released: Linux for the 8086
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My Happy HP 95LX is my everyday computer.
I don't think you can replace the OS on these. Unless there is a way to boot them from DOS, but you are looking at 8c086 machine so the choice is limited. Linux or BSD won't work. But ELKS might if it can be made to boot from DOS. Minix 2.02 seems to work.
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$5 Ai-M62-12F-Kit RISC-V development board features BL616 WiFi 6, BLE 5.2, and Zigbee MCU, plenty of I/Os - CNX Software
Yet ELKS works on 16 bit computers with 640k of RAM.
- ELKS: Embeddable Linux Kernel Subset
- Past meets present in this $200 mini-laptop with a Intel 8088 chip and 640KB
- Imaging an MFM Hard Disk on a PC XT
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Furby 1998 Source Code
Some small size Linux-like OSes do exist though: one commenter suggested Lunix (which I didn't know, thanks for the link), and a slightly bigger one is ELKS which runs on old MMU-less x86 CPUs. I managed to run it on a 8088 industrial PC ages ago.
https://github.com/jbruchon/elks
I should have a Furby buried somewhere; now that I think of it, it may be the right platform to stick a bigger brain into, make it wireless so that it could be connected to the home IoT network then signal events or alerts.
What are some alternatives?
OpenWrt-NanoPi-R2S-R4S-Builds - OpenWRT Builds for NanoPi R2S & R4S from official Openwrt source code with minimal set of patches
gcc-ia16 - Fork of Lambertsen & Jenner (& al.)'s IA-16 (Intel 16-bit x86) port of GNU compilers ― added far pointers & more • use https://github.com/tkchia/build-ia16 to build • Ubuntu binaries at https://launchpad.net/%7Etkchia/+archive/ubuntu/build-ia16/ • DJGPP/MS-DOS binaries at https://gitlab.com/tkchia/build-ia16/-/releases • mirror of https://gitlab.com/tkchia/gcc-ia16
openwrt-passwall - A commonly used proxy toolchain for Openwrt LuCI Application.
ao486_MiSTer - ao486 port for MiSTer
diodb - Open-source vulnerability disclosure and bug bounty program database
FUZIX - FuzixOS: Because Small Is Beautiful
Shocker
linux-uwu - An optimized kernel based on the Debian Linux sources with graysky2's gcc optimization patch, Gabriel Krisman's fsync patch, and some Clear Linux patches layered on top
genext2fs - genext2fs - ext2 filesystem generator for embedded systems
libudev-zero - Daemonless replacement for libudev
ncrack - Ncrack network authentication tool
XTulator - XTulator is a portable, open source x86 PC emulator currently supporting the 8086 instruction set and 80186 extensions.