Tags: vtable safe-linking c++ pwn heap-overflow 

Rating:

## Summary
Audit given source code and discover a heap overflow --> Forge a fake unsorted bin chunk in order to populate the heap with libc leaks --> Leak vtable first because of oopsie --> Leak libc --> find a crazy gadget which satisfies a one_gadget requirement --> flag

Original writeup (https://fexsec.net/variousctfs/learning-oop-sekaictf2025/).
headerAug. 18, 2025, 9:10 p.m.

bravoooo