{"provider_url":"https://hatena.blog","description":"I got a cold last weekend and spent my free time playing KalmarCTF 2025 in BunkyoWesterns to boost my immune system. It's been a long time since I last posted a writeup. I've been busy to write an article, but I felt I needed to do it because the challenges in this CTF were notable. [Pwn 354pt] Merg\u2026","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fptr-yudai.hatenablog.com%2Fentry%2F2025%2F03%2F10%2F123050\" title=\"KalmarCTF 2025 Writeup - CTF\u3059\u308b\u305e\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"CTF\u3059\u308b\u305e","url":"https://ptr-yudai.hatenablog.com/entry/2025/03/10/123050","version":"1.0","author_url":"https://blog.hatena.ne.jp/ptr-yudai/","provider_name":"Hatena Blog","author_name":"ptr-yudai","categories":["CTF","Writeup"],"blog_url":"https://ptr-yudai.hatenablog.com/","type":"rich","title":"KalmarCTF 2025 Writeup","width":"100%","published":"2025-03-10 12:30:50","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/p/ptr-yudai/20250310/20250310121103.png"}