Artemis Java Test Sandbox versions before 1.11.2 are vulnerable to a sandbox escape when an attacker loads untrusted libraries using System.load or System.loadLibrary. An attacker can abuse this issue to execute arbitrary Java when a victim executes the supposedly sandboxed code.

Affected: Maven: de.tum.in.ase:artemis-java-test-sandbox

### Summary Because of the missing `checkLink(String)` override in the SecurityManager, students can load libraries and execute arbitrary code.

### Details Using `System.load(String)` or `System.loadLibrary​(String)` students can load and execute arbitrary code.

```java private static native void start(List<String> args);

public static void main(String[] args) { System.load(new File("path_to_lib.so").getAbsolutePath()); start(List.of(args)); } ```

Adding this to the security manager (and a translation) should fix the issue: ```java @Override public void checkExec(String cmd) { try { if (enterPublicInterface()) return; throw new SecurityException(localized("security.error_link")); //$NON-NLS-1$ } finally { exitPublicInterface(); } } ```

### PoC See details.

### Impact Arbitrary code execution.