{"id":13538563,"url":"https://github.com/david942j/ctf-writeups","last_synced_at":"2025-11-09T12:03:55.097Z","repository":{"id":45982525,"uuid":"77058219","full_name":"david942j/ctf-writeups","owner":"david942j","description":"Collection of scripts and writeups","archived":false,"fork":false,"pushed_at":"2021-12-14T10:50:50.000Z","size":91372,"stargazers_count":320,"open_issues_count":0,"forks_count":34,"subscribers_count":30,"default_branch":"master","last_synced_at":"2025-04-09T16:18:44.703Z","etag":null,"topics":["ctf-writeups","pwn","writeup"],"latest_commit_sha":null,"homepage":"","language":"C","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/david942j.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2016-12-21T14:24:29.000Z","updated_at":"2025-01-06T03:35:04.000Z","dependencies_parsed_at":"2022-07-18T12:31:27.390Z","dependency_job_id":null,"html_url":"https://github.com/david942j/ctf-writeups","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/david942j%2Fctf-writeups","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/david942j%2Fctf-writeups/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/david942j%2Fctf-writeups/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/david942j%2Fctf-writeups/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/david942j","download_url":"https://codeload.github.com/david942j/ctf-writeups/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":248065282,"owners_count":21041872,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["ctf-writeups","pwn","writeup"],"created_at":"2024-08-01T09:01:13.526Z","updated_at":"2025-11-09T12:03:50.065Z","avatar_url":"https://github.com/david942j.png","language":"C","funding_links":[],"categories":["\u003ca id=\"c7f35432806520669b15a28161a4d26a\"\u003e\u003c/a\u003eCTF\u0026\u0026HTB","\u003ca id=\"8c5a692b5d26527ef346687e047c5c21\"\u003e\u003c/a\u003e收集"],"sub_categories":["\u003ca id=\"e64cedb2d91d06b3eeac5ea414e12b27\"\u003e\u003c/a\u003eCTF"],"readme":"# ctf-writeups\n\n# Tree\n\n## 0ctf-quals-2017\n\n* EasiestPrintf (pwn 150pts)\n* char (pwn 132pts)\n* diethard (pwn 183pts)\n* pages (pwn 647pts)\n  - [writeup](https://david942j.blogspot.com/2017/03/write-up-0ctf-2017-qual-pwn647-pages.html)\n* uploadcenter (pwn 523pts)\n\n## 0ctf-quals-2018\n\n* MathGame (misc 343pts)\n* MightyDragon (pwn 1000pts)\n  - [writeup](https://david942j.blogspot.tw/2018/04/write-up-0ctf-quals-2018-pwn1000-mighty.html)\n* babystack (pwn 132pts)\n* hidden_message (misc 36pts)\n\n## 0ctf-quals-2019\n\n* applepie (pwn 785pts)\n* calvino (pwn 234pts)\n* Elements (rev 107pts)\n* fixed_point (rev 275pts)\n* flropyd (misc 366pts)\n\n## 34c3ctf-2017\n\n* LFA (pwn 401pts)\n* software_update (crypto 182pts)\n\n## asis-final-2017\n\n* Cute V8 (rev 138pts)\n* Dr. John Waston (pwn 273pts)\n* Enrage Me (rev 322pts)\n* Handicraft RSA (crypto 138pts)\n* Jim Moriarty (pwn 367pts)\n* Molly Hooper (pwn 343pts)\n* Mycroft Holmes (pwn 131pts)\n\n## asis-quals-2018\n\n* Cat (pwn 68pts)\n* Density (rev 148pts)\n* My Blog (pwn 147pts)\n* The true origin (rev/crypto 394pts)\n\n## codeblue-2017\n\n* nonamestill (pwn 447pts)\n* Demo Scene DB (pwn 479pts)\n\n## codegate-quals-2017\n\n* dartmaster (pwn)\n* hunting (pwn 350pts)\n* meow (pwn 365pts)\n* messenger (pwn 205pts)\n* pngparser (pwn 435pts)\n\n## codegate-quals-2018\n\n* 7amebox1 (pwn 843pts)\n* super_ftp (pwn 600pts)\n* zoo (pwn 980pts)\n\n## codegate-quals-2019\n\n* archiver (pwn 47.6pts)\n\n## defcon-quals-2018\n\n* It's-a me! (pwn 124pts)\n* shellql (shellcode, web 118pts)\n* TechSupport (pwn 177pts)\n\n## defcon-quals-2019\n\n* election_coin (pwn, reverse 271pts)\n* hotel-california (shellcoding 187pts)\n* shitorrent (pwn 162pts)\n* speedrun\n  - 11 (shellcoding)\n  - 12 (pwn)\n* veryandroidoso (android, reverse 139pts)\n\n## dragonctf-teaser-2018\n\n* faststorage (pwn 400pts)\n* production (pwn 343pts)\n\n## fbctf-2019\n\n* asciishop (pwn 985pts)\n* imageprot (rev 100pts)\n* kpets (pwn 940pts)\n* nomoreseacrypt (rev 985pts)\n* otp_server (pwn 410pts)\n* overfloat (pwn 100pts)\n* raddest_db (pwn 998pts)\n* rank (pwn 494pts)\n\n## google-ctf-quals-2017\n\n* primary (pwn 474pts)\n  - [writeup](https://david942j.blogspot.com/2017/06/write-up-google-ctf-2017-pwn474-primary.html)\n\n## google-ctf-quals-2018\n\n* APT42 (rev 288pts + pwn 420pts)\n* better_zip (crypto 231pts)\n* keygenme (rev 249pts)\n* sandbox-compat (pwn 420pts)\n  - [writeup](https://david942j.blogspot.com/2018/06/write-up-google-ctf-2018-pwn420-sandbox.html)\n* sftp (pwn 181pts)\n\n## hitcon-quals-2017\n\nThese challenges are created by me so there're scripts for creating them.\n\n* artifact (pwn 192pts)\n* real-ruby-escaping (pwn 327pts)\n  - [writeup](https://david942j.blogspot.tw/2017/11/official-write-up-hitcon-ctf-2017.html)\n* seccomp (rev 271pts)\n* two (misc 274pts)\n* footbook (web 384pts)\n  - [writeup](https://github.com/david942j/ctf-writeups/blob/master/hitcon-quals-2017/footbook/README.md)\n* sakura (rev 218pts)\n* start (pwn 132pts)\n* void (rev 252pts)\n\n## hitcon-2018\n\nThese challenges are created by me so there're scripts for creating them.\n\n* EOP (rev 257pts)\n* abyss (pwn 230 + 292 + 262pts)\n* groot (pwn 305pts)\n* HITCON (pwn 327pts)\n* unexecutable (misc, pwn 360pts)\n\n## hitcon-quals-2019\n\nThese challenges are created by me so there're scripts for creating them.\n\n* PoE (pwn 284 + 500 + 500pts)\n  - [writeup](https://david942j.blogspot.com/2019/10/official-write-up-hitcon-ctf-quals-2019.html)\n* Welcome (welcome 50pts)\n* Revenge of Welcome (misc 105pts)\n* Suicune (rev 305pts)\n* heXDump (misc 202pts)\n\n## hitcon-2020\n\nThese challenges are created by me so there're scripts for creating them.\n\n* Revenge of Pwn (misc, pwn 255pts)\n* Tenet (misc, rev 222pts)\n* spark (pwn 334pts)\n* atoms (misc, pwn 296pts)\n* SOP (rev 305pts)\n* 11011001 (rev 255pts)\n\n## hitcon-2021\n\nThese challenges are created by me so there're scripts for creating them.\n\n* cclemon (reverse 271pts)\n* chaos-firmware ([crypto|pwn]+ 334pts)\n* chaos-kernel ([crypto|pwn]+ 421pts)\n* chaos-sandbox ([crypto|pwn]+ 450pts)\n  - [official writeup](https://david942j.blogspot.com/2021/12/official-write-up-hitcon-ctf-2021-chaos.html\n)\n* dtb (misc, pwn 450pts)\n* dtcaas (pwn 450pts)\n* mercy (reverse 305pts)\n* uml (pwn 265pts)\n\n## meepwnctf-2018\n\n* Coin (pwn 960pts)\n  - simple writeup in the directory\n* ESOR (crypto 100pts)\n\n## plaidctf-2017\n\n* bb8 (crypto 200pts)\n* bigpicture (pwn 200pts)\n* Plaid Party Planning (pwn 400pts)\n  - [writeup](https://david942j.blogspot.com/2017/04/write-up-plaidctf-2017-pwn400-plaid.html)\n\n## plaidctf-2018\n\n* potassium (pwn 400 + 150 + 250pts)\n* Re: Plaid Party Planning (misc 200pts)\n\n## plaidctf-2019\n\n* splaid-birch (pwn 300pts)\n* splaid-cypress (crypto 600pts)\n* suffarring (pwn 500pts)\n\n## rctf-2017\n\n* RCalc (pwn 350pts)\n* RNote (pwn 454pts)\n* RNote2 (pwn 606pts)\n* crackme (rev 714pts)\n\n## realworld-ctf-finals-2018\n\n* frawler (pwn 500pts)\n\n## realworld-ctf-quals-2019\n\n* Across the Great Wall (pwn 378pts)\n* anti-antivirus (pwn 290pts)\n* faX senDeR (pwn 224pts)\n\n## teaser-confidence-quals-2019\n\n* go-machine (rev 304pts)\n* oldschool (rev 128pts)\n* p4fmt (pwn 304pts)\n* pudliszki (rev 128pts)\n\n## twctf-2017\n\n* Steganographer Revenge (rev 500pts)\n  - [writeup](https://david942j.blogspot.com/2017/09/write-up-tokyo-westerns-ctf-2017-rev500.html)\n\n## twctf-2018\n\n* EscapeMe (pwn 240 + 300 + 300pts)\n  - [writeup](https://david942j.blogspot.com/2018/09/write-up-tokyowesterns-ctf-2018.html)\n* REVersiNG (rev 447pts)\n\n## twctf-2019\n\n* MultiHeap (pwn 270pts)\n* SecureKarte (pwn 255pts)\n* simple_logic (crypto 95pts)\n\n## whitehat-grand-prix-2016\n\n* Bun bo Nam Bo (pwn 500pts)\n  - [writeup](https://david942j.blogspot.tw/2016/12/write-up-whitehat-grand-prix-2016_21.html)\n  - [writeup (Chinese)](https://david942j.blogspot.com/2016/12/write-up-whitehat-grand-prix-2016.html)\n* Cao lau (pwn 400pts)\n  - [writeup](https://david942j.blogspot.com/2016/12/write-up-whitehat-grand-prix-2016_24.html)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdavid942j%2Fctf-writeups","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdavid942j%2Fctf-writeups","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdavid942j%2Fctf-writeups/lists"}