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CVE-2024-27980 is a high-severity security vulnerability affecting the Node.js runtime environment on Windows operating systems.
The vulnerability arises from the improper and insecure handling of batch files (.bat and .cmd files) within child process functions.
Specifically, functions such as child_process.spawn and child_process.spawnSync fail to sanitize command-line arguments safely.
When developers invoke batch scripts without enabling the shell option, they assume command interpreters are bypassed securely.
However, Windows command interpreters parse arguments and special characters embedded within batch file invocations differently.
An attacker can supply malicious command-line arguments that include command delimiters and special control characters.
These injected characters allow execution flow to break out of the intended argument context into the command interpreter.
Consequently, arbitrary system commands can be executed with the privileges of the active Node.js process instance.
This leads directly to remote code execution risks across applications relying on unvalidated child process spawning inputs.
The vulnerability impacts all major active release lines of Node.js running on Windows environments prior to patching.
The Node.js security team addressed this by implementing a breaking change that throws an EINVAL runtime error.
This error occurs if a batch file is spawned without explicitly setting the shell option to true.
Ecosystem tools like npmtastic have had to adapt their release cycles to accommodate this strict shell requirement.
Proper remediation requires developers to update their runtimes, handle shims through the shell, and sanitize inputs.
Without these protective measures, applications remain susceptible to command injection chains via dependency scripts.
DailyCVE Form:
Platform: Node.js Windows
Version: 18.x 20.x 21.x
Vulnerability: Command Injection
Severity: High Severity
date: April 2024
Prediction: April 2024
What Undercode Say
Analytics:
The blog highlights how dependency tools like npmtastic manage process shims and handle environment adjustments following upstream security fixes. The update to v0.1.1 resolves isolated test installation failures caused by Windows rejecting direct .cmd shim executions with EINVAL errors. Spawning these shims through the shell aligns with Node.js security requirements established after CVE-2024-27980.
Bash commands and codes:
npm i github:boredchilada/npmtastic git clone https://github.com/boredchilada/npmtastic.git cd npmtastic && npm install && npm run build
const { spawn } = require('child_process');
const secureSpawn = spawn('cmd.bat', ['safe-arg'], { shell: true });
Exploit: (Educational Purposes!)
const { spawnSync } = require('child_process');
// Injecting commands via unescaped batch arguments on Windows
spawnSync('vulnerable.bat', ['& calc.exe'], { shell: false });
When user-controlled input flows directly into child process spawn methods targeting batch scripts without shell enforcement, command interpreters interpret separators as executable boundaries, permitting arbitrary local code execution.
Protection: from this CVE
Upgrade Node.js installations to the latest secure patch releases containing CVE-2024-27980 fixes.
Pass `{ shell: true }` when spawning batch files if input validation and sanitization are fully verified.
Adopt updated utility packages, such as npmtastic v0.1.1, which natively route .cmd shims through the shell.
Avoid passing untrusted external parameters directly into Windows batch execution contexts.
Impact:
Remote code execution on Windows systems hosting vulnerable Node.js applications.
Complete system compromise through manipulated argument strings passed to child process APIs.
Execution crashes and EINVAL errors when running outdated toolchain scripts without shell configurations.
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Sources:
Reported By: github.com
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