CVE-2023-5572
📋 TL;DR
This Server-Side Request Forgery (SSRF) vulnerability in Vrite allows attackers to make unauthorized requests from the server to internal or external systems. It affects all users running Vrite versions prior to 0.3.0, potentially exposing internal network resources.
💻 Affected Systems
- Vrite
📦 What is this software?
Vrite by Vrite
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access internal services, exfiltrate sensitive data, perform port scanning of internal networks, or chain with other vulnerabilities to achieve remote code execution.
Likely Case
Unauthorized access to internal HTTP services, metadata services (like AWS/Azure instance metadata), or internal APIs leading to information disclosure.
If Mitigated
Limited to accessing only whitelisted external resources with proper input validation and network segmentation.
🎯 Exploit Status
SSRF vulnerabilities are commonly exploited and public proof-of-concept exists in the referenced bounty report.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.3.0 and later
Vendor Advisory: https://github.com/vriteio/vrite/commit/1877683b932bb33fb20d688e476284b70bb9fe23
Restart Required: Yes
Instructions:
1. Update Vrite to version 0.3.0 or later using your package manager. 2. Restart the Vrite service. 3. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation and URL Whitelisting
allImplement strict input validation to reject malicious URLs and whitelist allowed domains
Network Segmentation
allPlace Vrite in a restricted network segment with limited outbound access
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block SSRF patterns
- Restrict outbound network access from the Vrite server using firewall rules
🔍 How to Verify
Check if Vulnerable:
Check if Vrite version is below 0.3.0 in the application settings or package managerCheck Version:
Check package.json or application configuration for version numberVerify Fix Applied:
Confirm Vrite version is 0.3.0 or higher and test SSRF functionality is properly restricted📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from Vrite server
- Requests to internal IP addresses or metadata services
Network Indicators:
- HTTP requests from Vrite server to unexpected destinations
- Port scanning patterns from Vrite server
SIEM Query:
source="vrite" AND (dest_ip=169.254.169.254 OR dest_ip=10.* OR dest_ip=172.16.* OR dest_ip=192.168.*)