https://blog.zars.me/tags/ret2libc/Recent content in Ret2libc on Tyler's BlogHugoen-us© AthulSat, 17 Jun 2023 12:13:32 +0530https://blog.zars.me/posts/nahamctf2023/Sat, 17 Jun 2023 12:13:32 +0530https://blog.zars.me/posts/nahamctf2023/I keep having busy weekends and I wish I had a touch more time to grind out the challenges I had left for this CTF. Awesome challenges by the authors! Thanks for the fun CTF nahamsec team! Glasses 50 points - Warmups - 955 Solves - easy Author: @JohnHammond#6971 Everything is blurry, I think I need glasses! We can’t inspect element with a mouseclick. No worries, just use the keyboard shortcut (or on Mac the menu still pops).https://blog.zars.me/posts/irisctf-ret2libm/Wed, 01 Feb 2023 12:13:32 +0530https://blog.zars.me/posts/irisctf-ret2libm/The Challenge I need to make a pwn? Let’s go with that standard warmup rop thing… what was it… ret2libm? Author: sera ret2libm.zip / Dockerfile The Provided ZIP chal Provided binary chal.c Source which binary comes from libc-2.27.so Provided libc version libm-2.27.so Provided libm version Makefile Provided compilation flags What is libm? #include <math.h> libm is the standard math library for C. Where does libm live? $ ldd chal linux-vdso.so.1 (0x00007fffd53f5000) libm.