{"description":"I wrote the 6 pwn tasks of ASIS CTF 2020 Quals. Here is the brief overview of them. Challenge Vulnerability Estimated Difficulty Full Protection stack overflow, fsb warmup babynote integer overflow (to get out-of-bound address write) easy tthttpd stack overflow (to get arbitrary file read), blind fs\u2026","author_name":"ptr-yudai","width":"100%","author_url":"https://blog.hatena.ne.jp/ptr-yudai/","type":"rich","published":"2020-07-06 00:06:22","blog_url":"https://ptr-yudai.hatenablog.com/","url":"https://ptr-yudai.hatenablog.com/entry/2020/07/06/000622","provider_url":"https://hatena.blog","image_url":null,"blog_title":"CTF\u3059\u308b\u305e","title":"ASIS CTF 2020 Quals - Pwn Writeup","version":"1.0","categories":["CTF","Writeup"],"height":"190","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fptr-yudai.hatenablog.com%2Fentry%2F2020%2F07%2F06%2F000622\" title=\"ASIS CTF 2020 Quals - Pwn 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>"}