{"version":"1.0","author_url":"https://blog.hatena.ne.jp/null_null_ctf/","title":"Midnight Sun CTF Qualifiers 2022 Writeups","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnullnull.hateblo.jp%2Fentry%2F2022%2F04%2F07%2F110808\" title=\"Midnight Sun CTF Qualifiers 2022 Writeups - CTF\u5099\u5fd8\u9332\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","type":"rich","published":"2022-04-07 11:08:08","provider_name":"Hatena Blog","url":"https://nullnull.hateblo.jp/entry/2022/04/07/110808","description":"\u307e\u3048\u304c\u304d 1\u4eba\u30672\u6642\u9593\u51fa\u3066pwn\u306espeed\u554f\u984c\u30922\u554f\u89e3\u304d\u307e\u3057\u305f\u3002 \u30b3\u30f3\u30c6\u30b9\u30c8\u306e\u6642\u9593\u30922\u65e5\u3068\u304b\u306b\u3057\u3066\u307b\u3057\u3044\u30fb\u30fb\u30fb [pwn 50pts] speed1 \u51fa\u307e\u3057\u305f\u3001ROP\u3067\u3059\u3002 \u524d\u56de\u306eSpaceHeroesCTF\u306eVader\u3067\u3082\u3084\u308a\u307e\u3057\u305f\u306d\u3002 \u4eca\u56de\u306flibc\u304c\u914d\u3089\u308c\u3066\u308b\u306e\u3067libc_base\u3092\u6c42\u3081\u3066system\u3092\u8d77\u52d5\u3059\u308b\u3060\u3051\u3067\u3059\u3002 from pwn import * conn = remote(\"speed-01.hfsc.tf\", \"61000\") elf = ELF('./speed1') libc = ELF('./libc.so.6') offset = 0x28 pop_rdi_ret\u2026","image_url":null,"blog_url":"https://nullnull.hateblo.jp/","author_name":"null_null_ctf","categories":[],"blog_title":"CTF\u5099\u5fd8\u9332","provider_url":"https://hatena.blog"}