CVE-2022-39243

Public Exploit
NuProcess vulnerable to command-line injection through insertion of NUL character(s)

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.

Category

8.4
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.24%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: brettwooldridge NuProcess
Published at:
Updated at:

References

Link Tags
https://github.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-7ph7 third party advisory
https://github.com/brettwooldridge/NuProcess/pull/143 patch third party advisory exploit
https://github.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756363a9709f868 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-39243?
CVE-2022-39243 has been scored as a high severity vulnerability.
How to fix CVE-2022-39243?
To fix CVE-2022-39243, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-39243 being actively exploited in the wild?
It is possible that CVE-2022-39243 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-39243?
CVE-2022-39243 affects brettwooldridge NuProcess.
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