{"id":18250950,"url":"https://github.com/disconnect3d/crackme","last_synced_at":"2026-03-02T21:34:20.446Z","repository":{"id":92631868,"uuid":"46306990","full_name":"disconnect3d/crackme","owner":"disconnect3d","description":"Small crackme game on Linux","archived":false,"fork":false,"pushed_at":"2018-12-12T21:28:45.000Z","size":13,"stargazers_count":27,"open_issues_count":0,"forks_count":7,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-01-11T04:37:33.653Z","etag":null,"topics":["crackme","game","hack","reverse-engineering"],"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/disconnect3d.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,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2015-11-16T22:25:59.000Z","updated_at":"2024-08-16T19:03:45.000Z","dependencies_parsed_at":"2023-04-28T11:16:17.644Z","dependency_job_id":null,"html_url":"https://github.com/disconnect3d/crackme","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/disconnect3d%2Fcrackme","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/disconnect3d%2Fcrackme/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/disconnect3d%2Fcrackme/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/disconnect3d%2Fcrackme/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/disconnect3d","download_url":"https://codeload.github.com/disconnect3d/crackme/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":241133134,"owners_count":19915345,"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":["crackme","game","hack","reverse-engineering"],"created_at":"2024-11-05T09:46:18.473Z","updated_at":"2026-03-02T21:34:15.415Z","avatar_url":"https://github.com/disconnect3d.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Cr4ckm3 game\n\nCr4ckm3 is a small cracking game in which you search for password by using \"unusual\" [debugging] tools.\n\nThe exercises are pretty easy, you need to use tools like `strings`, `strace`, `gdb`, `gprof` or `g++`/`clang++` sanitizers.\n\n# Docker build instructions\n\nTo make sure you have all the right versions of all the required tools, there is a Docker build file. To build the Docker image:\n```bash\nbash ./docker/build.sh\n```\n\n... and play the game, run the following:\n```bash\nbash ./docker/run.sh\n# now you're in the container\ncat README.md # to see instructions\ncd crackme/\nls # you'll see all the challenges here\n```\n\n# Rules\n\n* do not look into makefile or src sources\n* do not change chmods\n\n\n# How to play\n\nJust clone the repository and fire `make` - it will build up a `crackme` directory. The first level is called `warmup`, so just fire `./crackme/warmup`. Hack it with `strace` or `strings`.\n\nThe password you will find is the next level file name (so if you find `password is something`, then the next file to hack is `./crackme/something`).\n\n\n# Authors\n\nThe game was made by Dominik Czarnota \u0026 Dariusz Zielinski for university classes at AGH University of Science and Technology in Cracow.\n\n\n# Hints/tools needed for particular level\n\nLevel 0 - warmup - `strace` / `strings`\n\nLevel 1 - `strace` / `grep`\n\nLevel 2 - `strace`, knowledge of file descriptors (and which file descriptors are usually opened for an executable?)\n\nLevel 3 - `strace` (did you know that you can read about syscall using `man`? e.g. `man 2 read`)\n\nLevel 4 - one of `g++` / `clang++` sanitizer (refer to `man g++` or read up documentation) should tell you what's wrong; you have to fix the program in here (so yeah, `cp` the source, change something and recompile)\n\nLevel 5 - `strace`\n\nLevel 6 - the binary is compiled with `-pg` flag; use `gprof`\n\nLevel 7 - `gdb`\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdisconnect3d%2Fcrackme","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdisconnect3d%2Fcrackme","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdisconnect3d%2Fcrackme/lists"}