Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nuprocess Project | Nuprocess | >= 1.2.0, < 2.0.5 |
| Linux | Linux Kernel | - |
Related Weaknesses (CWE)
References
- https://github.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756PatchThird Party Advisory
- https://github.com/brettwooldridge/NuProcess/pull/143ExploitPatchThird Party Advisory
- https://github.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-Third Party Advisory
- https://github.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756PatchThird Party Advisory
- https://github.com/brettwooldridge/NuProcess/pull/143ExploitPatchThird Party Advisory
- https://github.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-Third Party Advisory
FAQ
What is CVE-2022-39243?
CVE-2022-39243 is a vulnerability with a CVSS score of 8.4 (HIGH). 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+),...
How severe is CVE-2022-39243?
CVE-2022-39243 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-39243?
Check the references section above for vendor advisories and patch information. Affected products include: Nuprocess Project Nuprocess, Linux Linux Kernel.