Nebula level19
About
There is a flaw in the below program in how it operates.
To do this level, log in as the level19 account with the password level19 . Files for this level can be found in /home/flag19.
Source code
1 2<!DOCTYPE html> 3<html> 4 <head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# githubog: http://ogp.me/ns/fb/githubog#"> 5 <meta charset='utf-8'> 6 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 7 <title>GitHub �� Build software better, together.</title> 8 <link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="GitHub" /> 9 <link rel="fluid-icon" href="https://raw.github.com/fluidicon.png" title="GitHub" /> 10 <link rel="apple-touch-icon" sizes="57x57" href="/apple-touch-icon-114.png" /> 11 <link rel="apple-touch-icon" sizes="114x114" href="/apple-touch-icon-114.png" /> 12 <link rel="apple-touch-icon" sizes="72x72" href="/apple-touch-icon-144.png" /> 13 <link rel="apple-touch-icon" sizes="144x144" href="/apple-touch-icon-144.png" /> 14 <link rel="logo" type="image/svg" href="http://github-media-downloads.s3.amazonaws.com/github-logo.svg" /> 15 <link rel="xhr-socket" href="/_sockets" /> 16 17 18 <meta name="msapplication-TileImage" content="/windows-tile.png" /> 19 <meta name="msapplication-TileColor" content="#ffffff" /> 20 <meta name="selected-link" value="/gist/6fca3e3d3bd2a44a8af3/level19.c" data-pjax-transient /> 21 22 23 24 25 <link rel="icon" type="image/x-icon" href="/favicon.ico" /> 26 27 28 29 <link href="https://a248.e.akamai.net/assets.github.com/assets/github-fdebe8d3f60746fb87c763a59741ff520ae3d8e8.css" media="all" rel="stylesheet" type="text/css" /> 30 <link href="https://a248.e.akamai.net/assets.github.com/assets/github2-d530e63e2c132c7f0e6ac7228e7e1ab9ef2a8d94.css" media="all" rel="stylesheet" type="text/css" /> 31 32 33 34 <script src="https://a248.e.akamai.net/assets.github.com/assets/frameworks-92d138f450f2960501e28397a2f63b0f100590f0.js" type="text/javascript"></script> 35 <script src="https://a248.e.akamai.net/assets.github.com/assets/github-4037f12703c2d563310be4fcd52a229189468cce.js" type="text/javascript"></script> 36 37 <meta http-equiv="x-pjax-version" content="80973bfd2a5cb09c53d745b26b5b1dc0"> 38 39 <meta name="description" content="Build software better, together." /> 40 </head> 41 42 43 <body class="logged_out env-production "> 44 <div id="wrapper"> 45 46 47 48 49 50 51 52 53 <div class="header header-logged-out"> 54 <div class="container clearfix"> 55 56 <a class="header-logo-wordmark" href="https://raw.github.com/">Github</a> 57 58 <div class="header-actions"> 59 <a class="button primary" href="https://github.com/signup">Sign up</a> 60 <a class="button" href="https://github.com/login?return_to=%2Fgist%2F6fca3e3d3bd2a44a8af3%2Flevel19.c">Sign in</a> 61 </div> 62 63 <div class="command-bar js-command-bar "> 64 65 66 <ul class="top-nav"> 67 <li class="explore"><a href="https://github.com/explore">Explore</a></li> 68 <li class="features"><a href="https://github.com/features">Features</a></li> 69 <li class="blog"><a href="https://github.com/blog">Blog</a></li> 70 </ul> 71 <form accept-charset="UTF-8" action="/search" class="command-bar-form" id="top_search_form" method="get"> 72 <a href="/search/advanced" class="advanced-search-icon tooltipped downwards command-bar-search" id="advanced_search" title="Advanced search"><span class="mini-icon mini-icon-advanced-search "></span></a> 73 74 <input type="text" data-hotkey="/ s" name="q" id="js-command-bar-field" placeholder="Search or type a command" tabindex="1" autocapitalize="off" 75 76 > 77 78 79 <span class="mini-icon help tooltipped downwards" title="Show command bar help"> 80 <span class="mini-icon mini-icon-help"></span> 81 </span> 82 83 <input type="hidden" name="type" value="Code" /> 84 85 <input type="hidden" name="ref" value="cmdform"> 86 87 <div class="divider-vertical"></div> 88 89</form> 90 </div> 91 92 </div> 93</div> 94 95 96 97 98 99 100 101 <div class="site clearfix"> 102 <div id="site-container" class="context-loader-container" data-pjax-container> 103 104 <!-- 105This partial indicates that a repository has been detected as empty, but 106has has a non-nil pushed_at attribute. 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