CTF writeups Page on M Israrhttps://israrkhan-cys.github.io/ctf-writeups/Recent content in CTF writeups Page on M IsrarHugo -- gohugo.ioen-us© 2026 Muhammad IsrarMon, 06 Jul 2026 00:00:00 +0000picoCTF: Flag Shophttps://israrkhan-cys.github.io/ctf-writeups/flag_shop/Mon, 06 Jul 2026 00:00:00 +0000https://israrkhan-cys.github.io/ctf-writeups/flag_shop/Exploiting a signed integer overflow in a C ‘flag shop’ program to buy a flag we couldn’t otherwise afford.