Vulnerability Details : CVE-2022-39243
Potential exploit
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.
Products affected by CVE-2022-39243
- cpe:2.3:a:nuprocess_project:nuprocess:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-39243
0.64%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-39243
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
8.4
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.5
|
5.9
|
GitHub, Inc. |
CWE ids for CVE-2022-39243
-
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2022-39243
-
https://github.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756363a9709f868
Merge pull request #143 from benhumphreys/harden-null-injection · brettwooldridge/NuProcess@29bc09d · GitHubPatch;Third Party Advisory
-
https://github.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-7ph7
Command-line injection through insertion of NUL character(s) · Advisory · brettwooldridge/NuProcess · GitHubThird Party Advisory
-
https://github.com/brettwooldridge/NuProcess/pull/143
Null injection hardening by benhumphreys · Pull Request #143 · brettwooldridge/NuProcess · GitHubExploit;Patch;Third Party Advisory
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