Summary
Arbitrary code execution in de.tum.in.ase:artemis-java-test-sandbox
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.
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:
@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.
CVE-2024-23681 has a CVSS score of 8.2 (High). The vector is requires local access, low privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.11.2); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is CVE-2024-23681? CVE-2024-23681 is a high-severity security vulnerability in de.tum.in.ase:artemis-java-test-sandbox (maven), affecting versions < 1.11.2. It is fixed in 1.11.2.
- How severe is CVE-2024-23681? CVE-2024-23681 has a CVSS score of 8.2 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of de.tum.in.ase:artemis-java-test-sandbox are affected by CVE-2024-23681? de.tum.in.ase:artemis-java-test-sandbox (maven) versions < 1.11.2 is affected.
- Is there a fix for CVE-2024-23681? Yes. CVE-2024-23681 is fixed in 1.11.2. Upgrade to this version or later.
- Is CVE-2024-23681 exploitable, and should I be worried? Whether CVE-2024-23681 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2024-23681 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2024-23681? Upgrade
de.tum.in.ase:artemis-java-test-sandboxto 1.11.2 or later.