{"id":152,"date":"2020-05-05T16:03:03","date_gmt":"2020-05-05T14:03:03","guid":{"rendered":"https:\/\/blog.caturday-lovers.fr.nf\/?p=152"},"modified":"2020-05-05T20:59:55","modified_gmt":"2020-05-05T18:59:55","slug":"les-chatons-ont-la-reponse-fcsc-2020-rat-conteur","status":"publish","type":"post","link":"https:\/\/blog.caturday-lovers.fr.nf\/?p=152","title":{"rendered":"Les chatons ont la r\u00e9ponse \u2013 FCSC 2020 \/\/ Rat Conteur"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"499\" height=\"686\" src=\"https:\/\/blog.caturday-lovers.fr.nf\/wp-content\/uploads\/2020\/05\/2020-05-04_17h28_17.png\" alt=\"\" class=\"wp-image-153\" srcset=\"https:\/\/blog.caturday-lovers.fr.nf\/wp-content\/uploads\/2020\/05\/2020-05-04_17h28_17.png 499w, https:\/\/blog.caturday-lovers.fr.nf\/wp-content\/uploads\/2020\/05\/2020-05-04_17h28_17-218x300.png 218w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><figcaption><strong>bien lire l&rsquo;\u00e9nonc\u00e9 tu dois<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">Intro<\/h2>\n\n\n\n<p>Un fichier encod\u00e9 en AES-128-CTR, on nous donne la clef et l&rsquo;IV, bon ben il n&rsquo;y a plus qu&rsquo;\u00e0 !<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RTFM !!!!<\/h2>\n\n\n\n<p>Bon en fait non, pas seulement, sinon pourquoi \u00e9crire un WU pour cela ?  <br>Le moyen le plus simple pour encoder\/d\u00e9coder avec des cypher sous linux, c&rsquo;est notre ami OpenSSL,  et nous pouvons tout faire en une seule ligne de commande.<br>Pour les lecteurs sous le manchot, je vous conseille d&rsquo;installer EOG (Eye Of Gnome), qui est super pratique pour lire les images rapidement.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Exploit<\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl enc -d -aes-128-ctr -in flag.jpg.enc -out flag.jpg -K 00112233445566778899aabbccddeeff -iv 00000000000000000000000000000000 | oeg flag.jpg<\/pre>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"501\" height=\"577\" src=\"https:\/\/blog.caturday-lovers.fr.nf\/wp-content\/uploads\/2020\/05\/image-5.png\" alt=\"\" class=\"wp-image-155\" srcset=\"https:\/\/blog.caturday-lovers.fr.nf\/wp-content\/uploads\/2020\/05\/image-5.png 501w, https:\/\/blog.caturday-lovers.fr.nf\/wp-content\/uploads\/2020\/05\/image-5-260x300.png 260w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/><figcaption>sur le site, le flag entrer tu dois<\/figcaption><\/figure><\/div>\n\n\n\n<p>Fin du d\u00e9fi, un nouveau flag pour nous ! On commence \u00e0 se faire un peu de points mes chatons, nous sommes d\u00e9j\u00e0 \u00e0 140 pts depuis le d\u00e9but de ces posts.<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":13,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[98,100,102,99,63,61,97,101],"class_list":["post-152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kitensgotanswer","tag-aes","tag-aes-128-ctr","tag-cipher","tag-ctr","tag-ecsc","tag-fcsc","tag-openssl","tag-yoda"],"_links":{"self":[{"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=\/wp\/v2\/posts\/152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=152"}],"version-history":[{"count":2,"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=\/wp\/v2\/posts\/152\/revisions"}],"predecessor-version":[{"id":165,"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=\/wp\/v2\/posts\/152\/revisions\/165"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=\/wp\/v2\/media\/13"}],"wp:attachment":[{"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.caturday-lovers.fr.nf\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}