OpenBMC security, vulnerability research, binary exploitation, and CTF writeups.https://www.suzu.tw/zh-TWhttps://www.suzu.tw/books/naval-almanack/https://www.suzu.tw/books/naval-almanack/從白手起家到財務自由，矽谷傳奇創投家納瓦爾的投資哲學與人生智慧。Thu, 11 Jun 2026 00:00:00 GMT思維財務https://www.suzu.tw/posts/2026-05-26-ais3-pre-exam-2026-blooockchain/https://www.suzu.tw/posts/2026-05-26-ais3-pre-exam-2026-blooockchain/A pwn writeup for blooockchain, covering raw SHA-256 digests, strncat, an OOB leak, and saved RIP overwrite.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupPwnhttps://www.suzu.tw/posts/2026-05-26-ais3-pre-exam-2026-writeup%E5%89%8D%E8%A8%80/https://www.suzu.tw/posts/2026-05-26-ais3-pre-exam-2026-writeup%E5%89%8D%E8%A8%80/AIS3 Pre-Exam 2026 完整解題地圖：整理 Pwn、Web、Reverse、Crypto 與 Misc 題目，並依系列順序連結每篇詳細 Writeup。Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteuphttps://www.suzu.tw/posts/2026-05-26-cryptoeasyfault/https://www.suzu.tw/posts/2026-05-26-cryptoeasyfault/A crypto writeup for EasyFAULT, recovering the hidden RSA structure with lattice-style analysis.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupCryptoRSALatticehttps://www.suzu.tw/posts/2026-05-26-cryptoeasyjwt/https://www.suzu.tw/posts/2026-05-26-cryptoeasyjwt/A crypto writeup for EasyJWT, focusing on JWT signing, verification, and token forgery.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupCryptoJWThttps://www.suzu.tw/posts/2026-05-26-cryptoeasypaint/https://www.suzu.tw/posts/2026-05-26-cryptoeasypaint/A crypto writeup for EasyPAINT, extracting the Nuitka app logic and recovering the cryptographic path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupCryptoNuitkahttps://www.suzu.tw/posts/2026-05-26-cryptoeasyweb/https://www.suzu.tw/posts/2026-05-26-cryptoeasyweb/A crypto writeup for EasyWEB, analyzing the encrypted cookie/session behavior.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupCryptoWebhttps://www.suzu.tw/posts/2026-05-26-cryptoeasyzkp/https://www.suzu.tw/posts/2026-05-26-cryptoeasyzkp/A crypto writeup for EasyZKP, covering the proof protocol and final forgery.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupCryptoZKPhttps://www.suzu.tw/posts/2026-05-26-misc%C9%9Bsi-s%C7%9D%C9%94%C9%B9%C7%9D%CA%87-%E2%85%8El%C9%90%C6%83-s%C9%A5od/https://www.suzu.tw/posts/2026-05-26-misc%C9%9Bsi-s%C7%9D%C9%94%C9%B9%C7%9D%CA%87-%E2%85%8El%C9%90%C6%83-s%C9%A5od/A misc writeup for ƐSI∀ Sǝɔɹǝʇ Ⅎlɐƃ Sɥod, following the hidden host and service clues.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupMiscWebhttps://www.suzu.tw/posts/2026-05-26-mischacked-by-lazarus-group/https://www.suzu.tw/posts/2026-05-26-mischacked-by-lazarus-group/A misc writeup for Hacked by Lazarus Group, using proxy/header behavior to reach the flag.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupMiscHTTP Headershttps://www.suzu.tw/posts/2026-05-26-miscjail/https://www.suzu.tw/posts/2026-05-26-miscjail/A misc writeup for Jail, focusing on the Python jail request shape and execution trick.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupMiscPyjailhttps://www.suzu.tw/posts/2026-05-26-miscjail-revenge/https://www.suzu.tw/posts/2026-05-26-miscjail-revenge/A misc writeup for Jail-Revenge, abusing the Flask body handling and Python execution path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupMiscPyjailhttps://www.suzu.tw/posts/2026-05-26-misckernel0day/https://www.suzu.tw/posts/2026-05-26-misckernel0day/A misc writeup for Kernel0Day, from QEMU environment triage to the final privilege path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupMiscKernelhttps://www.suzu.tw/posts/2026-05-26-miscwelcome/https://www.suzu.tw/posts/2026-05-26-miscwelcome/A misc writeup for Welcome, solving the QR-code based warmup challenge.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupMiscQR Codehttps://www.suzu.tw/posts/2026-05-26-misc%E3%82%A2%E3%83%83%E3%82%B7%E3%82%A7%E3%83%B3%E3%83%86-/https://www.suzu.tw/posts/2026-05-26-misc%E3%82%A2%E3%83%83%E3%82%B7%E3%82%A7%E3%83%B3%E3%83%86-/A misc writeup for アッシェンテ！, analyzing the Minecraft mod and RNG path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupMiscMinecrafthttps://www.suzu.tw/posts/2026-05-26-misc%E6%83%B3%E5%9C%A8%E9%9B%AA%E4%B8%AD%E4%BE%86%E6%9D%AF%E4%B8%8B%E5%8D%88%E8%8C%B6%E5%97%8E/https://www.suzu.tw/posts/2026-05-26-misc%E6%83%B3%E5%9C%A8%E9%9B%AA%E4%B8%AD%E4%BE%86%E6%9D%AF%E4%B8%8B%E5%8D%88%E8%8C%B6%E5%97%8E/A misc writeup for 想在雪中來杯下午茶嗎?, using OSINT to identify the location.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupMiscOSINThttps://www.suzu.tw/posts/2026-05-26-pwndg-server/https://www.suzu.tw/posts/2026-05-26-pwndg-server/A pwn writeup for DG-Server, from HTTP parser triage to the final exploit path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupPwnDNShttps://www.suzu.tw/posts/2026-05-26-pwnooonvifd/https://www.suzu.tw/posts/2026-05-26-pwnooonvifd/A pwn writeup for ooonvifd, focusing on the ONVIF parser bug and exploitation flow.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupPwnONVIFHeaphttps://www.suzu.tw/posts/2026-05-26-pwnstd-print/https://www.suzu.tw/posts/2026-05-26-pwnstd-print/A pwn writeup for std-print, using the binary symbols, ROP, and flag memory leak path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupPwnROPhttps://www.suzu.tw/posts/2026-05-26-pwn%E7%89%B9%E5%88%A5%E7%9A%84%E6%84%9B%E7%B5%A6%E7%89%B9%E5%88%A5%E7%9A%84%E4%BD%A0/https://www.suzu.tw/posts/2026-05-26-pwn%E7%89%B9%E5%88%A5%E7%9A%84%E6%84%9B%E7%B5%A6%E7%89%B9%E5%88%A5%E7%9A%84%E4%BD%A0/A pwn writeup for 特別的愛給特別的你, covering the QEMU/raw-disk execution model and exploit path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupPwnKernelQEMUhttps://www.suzu.tw/posts/2026-05-26-pwn%E7%8D%A8%E5%B1%AC%E6%96%BC%E4%BD%A0%E7%9A%84%E9%AD%94%E6%B3%95/https://www.suzu.tw/posts/2026-05-26-pwn%E7%8D%A8%E5%B1%AC%E6%96%BC%E4%BD%A0%E7%9A%84%E9%AD%94%E6%B3%95/A pwn writeup for 獨屬於你的魔法, using one arbitrary write and glibc internals to reach shell.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupPwnglibchttps://www.suzu.tw/posts/2026-05-26-reversedg-server/https://www.suzu.tw/posts/2026-05-26-reversedg-server/A reverse writeup for DG-Server, covering the custom verifier and DNSSEC-like chain.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupReverseDNShttps://www.suzu.tw/posts/2026-05-26-reverselua/https://www.suzu.tw/posts/2026-05-26-reverselua/A reverse writeup for the Lua bytecode challenge and its custom opcode mapping.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupReverseLuahttps://www.suzu.tw/posts/2026-05-26-reversetetris/https://www.suzu.tw/posts/2026-05-26-reversetetris/A reverse writeup for tetris, analyzing the static ELF and hidden flag path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupReverseELFhttps://www.suzu.tw/posts/2026-05-26-reverse%E5%93%87%E9%87%91%E8%89%B2%E5%82%B3%E8%AA%AAhidden-in-the-cloak/https://www.suzu.tw/posts/2026-05-26-reverse%E5%93%87%E9%87%91%E8%89%B2%E5%82%B3%E8%AA%AAhidden-in-the-cloak/A reverse writeup for the Unity challenges 哇!金色傳說 and Hidden-in-the-Cloak.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupReverseUnityhttps://www.suzu.tw/posts/2026-05-26-webgive-me-flag/https://www.suzu.tw/posts/2026-05-26-webgive-me-flag/A web writeup for Give-Me-Flag, reversing the .NET service behavior and callback path.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupWeb.NEThttps://www.suzu.tw/posts/2026-05-26-weblinkedout/https://www.suzu.tw/posts/2026-05-26-weblinkedout/A web writeup for Linkedout, from file read to the final application exploit chain.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupWebFlaskhttps://www.suzu.tw/posts/2026-05-26-webmass-rapid-transit/https://www.suzu.tw/posts/2026-05-26-webmass-rapid-transit/A web writeup for Mass-Rapid-Transit, covering admin access, payload testing, and the final route.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupWebXSShttps://www.suzu.tw/posts/2026-05-26-webmygox-ave-mujica%E5%9C%96%E5%BA%AB/https://www.suzu.tw/posts/2026-05-26-webmygox-ave-mujica%E5%9C%96%E5%BA%AB/A web writeup for MyGO!!!!! x Ave Mujica 圖庫, chaining SQL injection and file read.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupWebSQLiLFIhttps://www.suzu.tw/posts/2026-05-26-webpdf-converter/https://www.suzu.tw/posts/2026-05-26-webpdf-converter/A web writeup for PDF-Converter, focusing on PHP, PDF generation, and file-read behavior.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupWebPHPSSRFhttps://www.suzu.tw/posts/2026-05-26-webtea-god-adventure/https://www.suzu.tw/posts/2026-05-26-webtea-god-adventure/A web writeup for Tea-God-Adventure, using prompt injection and internal blackbox probing.Tue, 26 May 2026 00:00:00 GMTAIS3CTFWriteupWebPrompt Injectionhttps://www.suzu.tw/posts/2026-05-15-openbmc-bmcweb-multipart-parser-cves/https://www.suzu.tw/posts/2026-05-15-openbmc-bmcweb-multipart-parser-cves/A practical, slide-backed analysis of CVE-2022-2809 and CVE-2022-3409 in the bmcweb multipart parser.Fri, 15 May 2026 00:00:00 GMTOpenBMCbmcwebCVEParserSecurityhttps://www.suzu.tw/posts/2026-05-15-openbmc-security-architecture-and-lab/https://www.suzu.tw/posts/2026-05-15-openbmc-security-architecture-and-lab/A practical and slide-backed walkthrough of OpenBMC architecture, attack surface, D-Bus, and a QEMU lab setup.Fri, 15 May 2026 00:00:00 GMTOpenBMCBMCSecurityFirmwareRedfishhttps://www.suzu.tw/posts/2026-05-15-openbmc-slpd-lite-cve-2024-41660/https://www.suzu.tw/posts/2026-05-15-openbmc-slpd-lite-cve-2024-41660/A practical, slide-backed analysis of CVE-2024-41660 in OpenBMC slpd-lite, focusing on SLP length fields and memory corruption.Fri, 15 May 2026 00:00:00 GMTOpenBMCslpd-liteCVEMemory CorruptionSecurityhttps://www.suzu.tw/posts/2026-01-18-cve-2024-2961-%E6%BC%8F%E6%B4%9E%E5%88%86%E6%9E%90/https://www.suzu.tw/posts/2026-01-18-cve-2024-2961-%E6%BC%8F%E6%B4%9E%E5%88%86%E6%9E%90/CVE-2024-2961 主要是 glibc 的 iconv 函式，在進行字元轉換時，因為呼叫 Escape Sequence 到輸出時沒有檢查邊界問題，因此可以造成 OOB Write，後續也利用這個 Off by one 來打達成 PHP 的 LFI to RCE 漏洞。Sun, 18 Jan 2026 00:00:00 GMTCVEiconvHeapLearningResearchhttps://www.suzu.tw/posts/2025-08-16-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-7%E5%AF%AB%E4%B8%80%E5%80%8B%E7%B0%A1%E6%98%93%E5%AD%97%E5%85%B8%E6%94%BB%E6%93%8A%E5%99%A8%E6%B8%AC%E8%A9%A6%E5%BC%B1%E5%AF%86%E7%A2%BC/https://www.suzu.tw/posts/2025-08-16-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-7%E5%AF%AB%E4%B8%80%E5%80%8B%E7%B0%A1%E6%98%93%E5%AD%97%E5%85%B8%E6%94%BB%E6%93%8A%E5%99%A8%E6%B8%AC%E8%A9%A6%E5%BC%B1%E5%AF%86%E7%A2%BC/其實，Sat, 16 Aug 2025 00:00:00 GMTLearningRuby30天學Ruby挑戰https://www.suzu.tw/posts/2025-08-15-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-6%E7%88%AC%E8%9F%B2%E8%87%AA%E5%8B%95%E6%90%9C%E5%B0%8B%E6%95%8F%E6%84%9F%E8%B3%87%E8%A8%8A/https://www.suzu.tw/posts/2025-08-15-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-6%E7%88%AC%E8%9F%B2%E8%87%AA%E5%8B%95%E6%90%9C%E5%B0%8B%E6%95%8F%E6%84%9F%E8%B3%87%E8%A8%8A/如果去看常見的一些資安事件，Fri, 15 Aug 2025 00:00:00 GMTLearningRuby30天學Ruby挑戰https://www.suzu.tw/posts/2025-08-14-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-5%E5%9F%BA%E6%9C%AC-html-%E8%A7%A3%E6%9E%90%E6%89%BE%E5%87%BA%E6%BD%9B%E5%9C%A8%E6%94%BB%E6%93%8A%E9%BB%9E/https://www.suzu.tw/posts/2025-08-14-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-5%E5%9F%BA%E6%9C%AC-html-%E8%A7%A3%E6%9E%90%E6%89%BE%E5%87%BA%E6%BD%9B%E5%9C%A8%E6%94%BB%E6%93%8A%E9%BB%9E/找到 Web 服務之後，下一步就是分析網頁內容了。Thu, 14 Aug 2025 00:00:00 GMTLearningRuby30天學Ruby挑戰https://www.suzu.tw/posts/2025-08-13-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-4%E4%BD%BF%E7%94%A8-http-%E8%AB%8B%E6%B1%82%E5%81%B5%E6%B8%AC-web-%E6%9C%8D%E5%8B%99%E7%8B%80%E6%85%8B/https://www.suzu.tw/posts/2025-08-13-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-4%E4%BD%BF%E7%94%A8-http-%E8%AB%8B%E6%B1%82%E5%81%B5%E6%B8%AC-web-%E6%9C%8D%E5%8B%99%E7%8B%80%E6%85%8B/在做滲透測試的時候，只知道 port 開著還不夠，Wed, 13 Aug 2025 00:00:00 GMTLearningRuby30天學Ruby挑戰https://www.suzu.tw/posts/2025-08-12-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-3banner-grabbing-%E6%8A%93%E5%8F%96%E6%9C%8D%E5%8B%99%E8%B3%87%E8%A8%8A/https://www.suzu.tw/posts/2025-08-12-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-3banner-grabbing-%E6%8A%93%E5%8F%96%E6%9C%8D%E5%8B%99%E8%B3%87%E8%A8%8A/在偵查的時候，知道某個 Port 有沒有開還不夠，通常還會去看背後是什麼服務、版本是多少。Tue, 12 Aug 2025 00:00:00 GMTLearningRuby30天學Ruby挑戰https://www.suzu.tw/posts/2025-08-10-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-2%E7%94%A8%E5%A4%9A%E5%9F%B7%E8%A1%8C%E7%B7%92%E5%8A%A0%E9%80%9F-port-scanner/https://www.suzu.tw/posts/2025-08-10-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-2%E7%94%A8%E5%A4%9A%E5%9F%B7%E8%A1%8C%E7%B7%92%E5%8A%A0%E9%80%9F-port-scanner/在資安方面，很多任務都是 I/O 密集型（例如網路掃描、HTTP 請求），Sun, 10 Aug 2025 00:00:00 GMTLearningRuby30天學Ruby挑戰https://www.suzu.tw/posts/2025-08-09-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-1%E7%94%A8-ruby-%E5%AF%AB%E4%B8%80%E5%80%8B%E7%B0%A1%E6%98%93-port/https://www.suzu.tw/posts/2025-08-09-30%E5%A4%A9%E5%AD%B8%E7%BF%92%E6%96%B0%E8%AA%9E%E8%A8%80-rubyday-1%E7%94%A8-ruby-%E5%AF%AB%E4%B8%80%E5%80%8B%E7%B0%A1%E6%98%93-port/先講一下 Ruby 跟其他語言的差別好了，Sat, 09 Aug 2025 00:00:00 GMTLearningRuby30天學Ruby挑戰https://www.suzu.tw/posts/2025-08-05-%E4%B8%80%E4%BA%9B%E4%B9%8B%E5%89%8D%E7%9A%84%E8%A7%A3%E9%A1%8C%E8%B3%87%E6%96%99%E5%BA%AB/https://www.suzu.tw/posts/2025-08-05-%E4%B8%80%E4%BA%9B%E4%B9%8B%E5%89%8D%E7%9A%84%E8%A7%A3%E9%A1%8C%E8%B3%87%E6%96%99%E5%BA%AB/因為之前習慣放 Notion，有些跨平台的題目比較好整理在一起，所以部分題目也會放在這邊：Tue, 05 Aug 2025 00:00:00 GMTWriteupsCTFNCKUCTFAIS3pwnableNOPctfhttps://www.suzu.tw/posts/2025-04-30-from-lol-to-lolbas---win10_11-attack/https://www.suzu.tw/posts/2025-04-30-from-lol-to-lolbas---win10_11-attack/目標：Wed, 30 Apr 2025 00:00:00 GMTResearchWindowsLOLBAShttps://www.suzu.tw/posts/2025-03-27-%E7%B6%B2%E8%B7%AF%E5%AE%89%E5%85%A8%E5%AF%A6%E5%8B%99%E8%88%87%E7%A4%BE%E6%9C%83%E5%AF%A6%E8%B8%90%E4%BD%9C%E6%A5%AD%E4%B8%89/https://www.suzu.tw/posts/2025-03-27-%E7%B6%B2%E8%B7%AF%E5%AE%89%E5%85%A8%E5%AF%A6%E5%8B%99%E8%88%87%E7%A4%BE%E6%9C%83%E5%AF%A6%E8%B8%90%E4%BD%9C%E6%A5%AD%E4%B8%89/登入頁面的sqliThu, 27 Mar 2025 00:00:00 GMTCTFLearningWriteupshttps://www.suzu.tw/posts/2025-03-26-%E4%BD%9C%E6%A5%AD%E4%BA%8C-write-up/https://www.suzu.tw/posts/2025-03-26-%E4%BD%9C%E6%A5%AD%E4%BA%8C-write-up/發現這題的path traversal重點在這個區間Wed, 26 Mar 2025 00:00:00 GMTCTFLearningWriteupshttps://www.suzu.tw/posts/2025-03-11-picoctf-2025-write-ups/https://www.suzu.tw/posts/2025-03-11-picoctf-2025-write-ups/payload: getattr(import('o'+'s'), 'po'+'pen')('tac${IFS}'+chr(47)+'fl').read()Tue, 11 Mar 2025 00:00:00 GMTWriteupsCTFpicoCTFhttps://www.suzu.tw/posts/2025-03-07-%E7%B6%B2%E8%B7%AF%E5%AE%89%E5%85%A8%E5%AF%A6%E5%8B%99%E8%88%87%E7%A4%BE%E6%9C%83%E5%AF%A6%E8%B8%90%E4%BD%9C%E6%A5%AD%E4%B8%80/https://www.suzu.tw/posts/2025-03-07-%E7%B6%B2%E8%B7%AF%E5%AE%89%E5%85%A8%E5%AF%A6%E5%8B%99%E8%88%87%E7%A4%BE%E6%9C%83%E5%AF%A6%E8%B8%90%E4%BD%9C%E6%A5%AD%E4%B8%80/> 此次 Lab 共為兩題Fri, 07 Mar 2025 00:00:00 GMTCTFLearningWriteupshttps://www.suzu.tw/posts/2025-01-31-portswigger-sqli-writeup/https://www.suzu.tw/posts/2025-01-31-portswigger-sqli-writeup/1. 開始會需要用到 Burp Suite Repeater 來幫忙轉成 URL Encoding 了（而且也比較方便看 response）Fri, 31 Jan 2025 00:00:00 GMTPortSwiggerLearningWriteupshttps://www.suzu.tw/posts/2025-01-16-2025-tscctf-writeup/https://www.suzu.tw/posts/2025-01-16-2025-tscctf-writeup/反白就可以找到flagThu, 16 Jan 2025 00:00:00 GMTWriteupsCTF