CVE-2025-57283
📋 TL;DR
The browserstack-local Node.js package version 1.5.8 contains a command injection vulnerability due to improper sanitization of the logfile variable in lib/Local.js. This allows attackers to execute arbitrary commands on the host system when the vulnerable function is called. Developers using this package in their applications are affected.
💻 Affected Systems
- browserstack-local
📦 What is this software?
Browserstack Local by Browserstack
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with remote code execution, allowing attackers to install malware, exfiltrate data, or pivot to other systems.
Likely Case
Limited command execution within the application's context, potentially leading to data theft, service disruption, or further privilege escalation.
If Mitigated
No impact if proper input validation and sanitization are implemented, or if the vulnerable function is not exposed to user input.
🎯 Exploit Status
Exploitation requires the vulnerable function to be called with attacker-controlled input.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.9 or later
Vendor Advisory: https://www.npmjs.com/package/browserstack-local
Restart Required: Yes
Instructions:
1. Update package.json to use browserstack-local version 1.5.9 or later. 2. Run 'npm update browserstack-local'. 3. Restart the application.
🔧 Temporary Workarounds
Input Validation
allImplement strict input validation for the logfile parameter before passing it to browserstack-local functions.
Package Removal
allRemove browserstack-local package if not essential, or replace with alternative solution.
npm uninstall browserstack-local
🧯 If You Can't Patch
- Implement network segmentation to isolate systems using vulnerable package.
- Deploy application-level firewalls to monitor and block suspicious command execution attempts.
🔍 How to Verify
Check if Vulnerable:
Check package.json or run 'npm list browserstack-local' to see if version 1.5.8 is installed.Check Version:
npm list browserstack-localVerify Fix Applied:
Verify package.json specifies browserstack-local version 1.5.9 or later, and run 'npm list browserstack-local' to confirm.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in application logs
- Suspicious logfile parameter values
Network Indicators:
- Unexpected outbound connections from application server
- Command and control traffic patterns
SIEM Query:
Process execution events with suspicious command-line arguments from Node.js applications