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CVE-2022-39243

8.4 · HIGH

NuProcess is an external process execution implementation for Java.

Published Sep 26, 2022CWE-77EPSS 1.56%

Overview

CVE-2022-39243 is a high-severity vulnerability. It was published on September 26, 2022 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756363a9709f868GitHubgithub.com/brettwooldridge/NuProcess/pull/143GitHubgithub.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-7ph7GitHubgithub.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756363a9709f868GitHubgithub.com/brettwooldridge/NuProcess/pull/143GitHubgithub.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-7ph7

How CyberStrike helps

Frequently asked questions

What is CVE-2022-39243?

CVE-2022-39243 is a high-severity vulnerability. It was published on September 26, 2022 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2022-39243?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-39243?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-39243?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-39243 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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