CVE-2023-3224
📋 TL;DR
This vulnerability allows remote code execution through improper input validation in Nuxt.js. Attackers can inject malicious code that gets executed on the server, potentially compromising the entire application. All Nuxt.js applications using affected versions are vulnerable.
💻 Affected Systems
- Nuxt.js
📦 What is this software?
Nuxt by Nuxt
⚠️ Risk & Real-World Impact
Worst Case
Complete server takeover allowing data theft, malware deployment, and lateral movement within the network.
Likely Case
Server compromise leading to data exfiltration, defacement, or cryptocurrency mining.
If Mitigated
Limited impact with proper input validation and sandboxing in place.
🎯 Exploit Status
Exploit details are publicly available in the referenced commits and bounty reports.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.5.3
Vendor Advisory: https://github.com/nuxt/nuxt/commit/65a8f4eb3ef1b249a95fd59e323835a96428baff
Restart Required: Yes
Instructions:
1. Update package.json to specify 'nuxt': '^3.5.3'. 2. Run 'npm update nuxt' or 'yarn upgrade nuxt'. 3. Restart the application server.
🔧 Temporary Workarounds
Input Validation Middleware
allAdd custom middleware to sanitize and validate all user inputs before processing.
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user-controlled data.
- Deploy web application firewall (WAF) rules to block code injection patterns.
🔍 How to Verify
Check if Vulnerable:
Check package.json for Nuxt version below 3.5.3.Check Version:
npm list nuxt | grep nuxtVerify Fix Applied:
Confirm package.json shows Nuxt version 3.5.3 or higher.📡 Detection & Monitoring
Log Indicators:
- Unusual process executions from web server
- Suspicious JavaScript or shell commands in request logs
Network Indicators:
- Unexpected outbound connections from web server
- Data exfiltration patterns
SIEM Query:
source="web_server" AND (process_execution OR command_injection)