2 byte overwrite

what no

Yeah

also stack cookies

and the weird esp trash

It is easily bypassed too

how

Find the random piece on asm

Reversing etc

WHAT

you are high

Stack cookie is random

you cannot predict it, it changes everytime you run the program

try it

Stack cookie is random

You could find the pattern

Like actually try

You could find the pattern

there isnt ffs

It’s 7 random bytes

try it

^

Go gdb

Check your stack cookie

It changes all the time

I am not gdb . I am into windows . I have done multiples stack cookies on ctftime , but the thing could stop a bit it is EMET , but 5.1 < it is exploitable

done multiple stack cookies on ctftime wtf

Show me your exploit then with your hardcoded stack cookie

done multiple stack cookies on ctftime wtf

canaries could be bypassed through SEH vuln

many techniques

https://tcode2k16.github.io/blog/posts/2018/tuctf-writeup/#canary

lol im literally irl friends with that dude

ive also done that kind of chals

Those aren’t actual caneries

Those are like home made caneries that are pseudorandom

You cannot predict caneries without leaking them for actual stack caneries

Just try with like int main(){char a[10];a=gets();return 0;}

brute force or find modify error handlers SEH and avoid canary check

canaries doesnt check errors handlers

Is there any simple compiler which doesnt suck? Gcc is bloat and clang is pain in ass to build

brute force or find modify error handlers SEH and avoid canary check

you cant

7 bytes

+2 bytes aslr

if pie gg

You have a lot more bruting to do

since gadgets come from libc and source

If you say its possible why not show an actual example

you cant

The samples are in the osce course which is not free , But there are many samples on the net about this

You could only control the module with only 2 bytes , and other tricks

Google can😁

hahaha

Is there any simple compiler which doesnt suck? Gcc is bloat and clang is pain in ass to build

Well clang

You mean it's a pain in the ass to build the LLVM toolchain itself?

I want to learn c and c++ program anyone can teach me🙏

It's tricky language especially errors are so so much

It's tricky language especially errors are so so much

It's has been more than 1 year in school this subject It still eat a lot of mind

Admin what Is boolean algebra It is in my syllabus

Admin what Is boolean algebra It is in my syllabus

class 12th ?

Admin what Is boolean algebra It is in my syllabus

https://www.tutorialspoint.com/computer_logical_organization/boolean_algebra.htm this may help 😁

Is there any simple compiler which doesnt suck? Gcc is bloat and clang is pain in ass to build

What OS are you using?

Hii

You mean it's a pain in the ass to build the LLVM toolchain itself?

Yeah

What OS are you using?

Gentoo Linux

was abandoned by its developers in 2005

i use an assembler compiler that was abandoned by its initial devs and I use a linker that was abandoned by its initial devs 😉

there are always people crazy enough to maintain stuff

there are always people crazy enough to maintain stuff

I wanna do so too with tcc

Please don't unless you know what the fuck you do

theres a reason not many other compilers do as well as tcc

Please don't unless you know what the fuck you do

You advice against it? Can you tell your experience with it?

I advise against it because I doubt that you will be able to maintain the compiler as well as the people who wrote it so far

right

I am not 1337 enough

Programming in a minimal style is a challenge

its a challenge everybody should learn

but for example - if you think that classes have no bloat - ding ding ding ding

Right

you lost :D

Right

Atleast you are honest to yourself - other than many other people in here 😉

:D

but for example - if you think that classes have no bloat - ding ding ding ding

Lets wait for some C++ fanboy to dissagree

Lets wait for some C++ fanboy to dissagree

C++ is great. Sorry had to do it

😂

https://en.cppreference.com/w/cpp/numeric/valarray

Whoa :D

thank you C++