Collaborate Disseminate
In the classic gaming world, even before the NES arrived on the scene, there was no name more ubiquitous than Atari. Their famous 2600 console sold almost as many units as the Nintendo 64, but was released nearly 20 years prior. In many ways, despite making mistakes that led to …read more
Join us on Wednesday, April 15 at noon Pacific for the PCB Bring-Up Hack Chat with Mihir Shah and Liam Cadigan!
The printed circuit design process is pretty unique among manufacturing processes. Chances are pretty good that except for possibly a breadboard prototype, the circuit that sits before you after …read more
From my understanding this does a chown(NULL) then chmod 3565
and lastly a SYS_exit
the code is from here https://www.win.tue.nl/~aeb/linux/hh/ptrace-kmod-exploit.c
jmp short loc_23
I am trying to complete level 3 of buffer bomb lab. The task is to supply an exploit string that will cause getbuf to return my cookie (0x4b64b076) back to test, rather than the value 1. The exploit code should set the cookie as the return… Continue reading Buffer bomb level 3 – Prevent stack corruption
I know you need position independent code to write shellcode. Do any compilers compile to position independent code?
Continue reading Do any compilers allow for truly position independent code to be written?
The field of computer science has undeniably changed the world for virtually every single person by now. Certainly for you as Hackaday reader, but also for everyone around you, whether they’re working in the field themselves, or are simply enjoying the fruits of convenience it bears. What was once a …read more
Continue reading Tony Brooker And Autocode – The First High-level Language
When I do CTFs, I can usually cope well with and understanding everything pretty much apart from buffer overflows, binary exploitation and reverse engineering
Almost to the point that I would consider myself having zero know… Continue reading Reverse engineering and buffer overflows: zero to hero
I am really at a loss trying to understand why a Metasploit Windows payload is indeed reached (see snapshot from Immunity below), executed (at least partially), but doesn’t pop a calc.exe at all.
The shellcode on its own, te… Continue reading Shellcode is jumped to and executed but runs into error
There are a few common lessons that get repeated by anyone who takes on the task of assembling a few hundred PCBs, but there are also unique insights to be had. [DominoTree] shared his takeaways after making a couple hundred electronic badges for DEFCON 26 (that’s the one before the …read more
Continue reading These Tips Make Assembling a Few Hundred PCBs Easier
When a processor has a fault it can leave what looks to be precious little in the way of cause and effect. Debug-by-print-statement works surprisingly well in simple cases, but where in a desktop environment you would drop into a debugger to solve trickier problems this can be an onerous …read more
Continue reading Debug Superpowers Bring An STM32 Back From The Dead