CVE-2020-28435
📋 TL;DR
CVE-2020-28435 is a command injection vulnerability in the ffmpeg-sdk npm package that allows attackers to execute arbitrary commands on affected systems. The vulnerability affects all versions of ffmpeg-sdk and is triggered through improper input sanitization in the package's index.js file. Any application using this vulnerable package is at risk.
💻 Affected Systems
- ffmpeg-sdk npm package
📦 What is this software?
Ffmpeg Sdk by Ffmpeg Sdk 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 system compromise with remote code execution leading to data theft, ransomware deployment, or complete system takeover.
Likely Case
Arbitrary command execution with the privileges of the running application, potentially leading to data exfiltration or lateral movement.
If Mitigated
Limited impact if proper input validation and sandboxing are implemented, restricting command execution scope.
🎯 Exploit Status
The vulnerability is in a widely used package and exploitation requires minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None
Vendor Advisory: https://security.snyk.io/vuln/SNYK-JS-FFMPEGSDK-1050429
Restart Required: No
Instructions:
Remove ffmpeg-sdk package entirely and replace with alternative solutions. Run: npm uninstall ffmpeg-sdk
🔧 Temporary Workarounds
Input Validation Wrapper
allImplement strict input validation and sanitization for all parameters passed to ffmpeg-sdk functions.
Sandbox Execution
allRun the application in a container or sandbox with minimal privileges to limit potential damage.
🧯 If You Can't Patch
- Implement network segmentation to isolate systems using ffmpeg-sdk from critical infrastructure.
- Deploy application-level firewalls to monitor and block suspicious command execution patterns.
🔍 How to Verify
Check if Vulnerable:
Check package.json or node_modules for ffmpeg-sdk dependency. Run: npm list ffmpeg-sdkCheck Version:
npm list ffmpeg-sdkVerify Fix Applied:
Verify ffmpeg-sdk is no longer in package.json or node_modules. Run: npm list | grep ffmpeg-sdk📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns
- Suspicious process spawning from Node.js applications
- Error logs containing command injection attempts
Network Indicators:
- Unexpected outbound connections from Node.js processes
- Command and control traffic patterns
SIEM Query:
process.name:node AND (process.cmdline:*ffmpeg* OR process.cmdline:*cmd.exe* OR process.cmdline:*bash*)