CVE-2020-28443
📋 TL;DR
CVE-2020-28443 is a command injection vulnerability in the sonar-wrapper npm package that allows attackers to execute arbitrary commands on the host system. This affects all versions of sonar-wrapper, putting any application using this package at risk of complete system compromise.
💻 Affected Systems
- sonar-wrapper npm package
📦 What is this software?
Sonar Wrapper by Sonar Wrapper Project
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full remote code execution leading to complete system takeover, data exfiltration, and lateral movement within the network.
Likely Case
Arbitrary command execution with the privileges of the running process, potentially leading to data theft, service disruption, or further exploitation.
If Mitigated
Limited impact if proper input validation and sandboxing are implemented, potentially only affecting the specific service.
🎯 Exploit Status
The vulnerability is in a publicly accessible function with minimal exploitation complexity.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: https://security.snyk.io/vuln/SNYK-JS-SONARWRAPPER-1050980
Restart Required: Yes
Instructions:
1. Remove sonar-wrapper from your project dependencies. 2. Use an alternative package or implement the functionality securely. 3. Restart all affected services.
🔧 Temporary Workarounds
Remove sonar-wrapper dependency
allCompletely remove the vulnerable package from your project and replace with secure alternatives.
npm uninstall sonar-wrapper
Input validation wrapper
allImplement strict input validation and sanitization for all parameters passed to sonar-wrapper functions.
🧯 If You Can't Patch
- Network segmentation to isolate systems using sonar-wrapper
- Implement strict egress filtering to limit outbound connections from affected systems
🔍 How to Verify
Check if Vulnerable:
Check package.json for sonar-wrapper dependency or run: npm list sonar-wrapperCheck Version:
npm list sonar-wrapperVerify Fix Applied:
Verify sonar-wrapper is no longer in package.json and npm list shows no sonar-wrapper installation📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns
- Suspicious child process spawns from Node.js applications
- Unexpected system commands in application logs
Network Indicators:
- Unexpected outbound connections from Node.js processes
- Command and control traffic patterns
SIEM Query:
process.name:node AND (process.args:*sonar* OR process.args:*cmd* OR process.args:*sh*)