CVE-2022-25759
📋 TL;DR
CVE-2022-25759 is a critical remote code injection vulnerability in convert-svg-core package versions before 0.6.2. Attackers can execute arbitrary code on affected systems by uploading malicious SVG files containing payloads. This affects any application using vulnerable versions of convert-svg-core for SVG processing.
💻 Affected Systems
- convert-svg-core
📦 What is this software?
Convert Svg Core by Convert Svg Core Project
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands with application privileges, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Remote code execution leading to application compromise, data exfiltration, and potential privilege escalation on the host system.
If Mitigated
Limited impact if proper input validation and sandboxing are implemented, potentially resulting in denial of service at worst.
🎯 Exploit Status
Exploitation requires only SVG file upload capability. Public proof-of-concept exists in GitHub issues.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.6.2 and later
Vendor Advisory: https://github.com/neocotic/convert-svg/security/advisories
Restart Required: Yes
Instructions:
1. Update package.json to require convert-svg-core version 0.6.2 or higher. 2. Run 'npm update convert-svg-core'. 3. Restart the application.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict SVG validation before processing
Implement XML schema validation for SVG files
Use DOMPurify or similar library to sanitize SVG content
File Upload Restrictions
allBlock SVG file uploads entirely
Configure web server to reject .svg file uploads
Implement file type validation in application code
🧯 If You Can't Patch
- Implement strict network segmentation to isolate SVG processing services
- Deploy web application firewall with SVG content inspection rules
🔍 How to Verify
Check if Vulnerable:
Check package.json for convert-svg-core version <0.6.2 or run 'npm list convert-svg-core'Check Version:
npm list convert-svg-core | grep convert-svg-coreVerify Fix Applied:
Verify package.json shows convert-svg-core version >=0.6.2 and test SVG processing functionality📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from Node.js application
- Large or malformed SVG file uploads
- Error logs showing SVG parsing failures
Network Indicators:
- Unusual outbound connections from application server
- SVG file uploads containing script tags or encoded payloads
SIEM Query:
source="application.logs" AND ("convert-svg" OR "svg processing") AND ("error" OR "exception")🔗 References
- https://github.com/neocotic/convert-svg/commit/7e6031ac7427cf82cf312cb4a25040f2e6efe7a5
- https://github.com/neocotic/convert-svg/issues/81
- https://github.com/neocotic/convert-svg/pull/82
- https://security.snyk.io/vuln/SNYK-JS-CONVERTSVGCORE-2849633
- https://github.com/neocotic/convert-svg/commit/7e6031ac7427cf82cf312cb4a25040f2e6efe7a5
- https://github.com/neocotic/convert-svg/issues/81
- https://github.com/neocotic/convert-svg/pull/82
- https://security.snyk.io/vuln/SNYK-JS-CONVERTSVGCORE-2849633
