CVE-2024-22217
📋 TL;DR
This Server-Side Request Forgery (SSRF) vulnerability in Terminalfour allows authenticated users to abuse specific features to make requests to internal services, potentially accessing sensitive information on the server. It affects all Terminalfour installations before version 8.3.19 where authenticated users have access to vulnerable features.
💻 Affected Systems
- Terminalfour
📦 What is this software?
Terminalfour by Terminalfour
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access internal services, sensitive server data, cloud metadata, or pivot to other internal systems, potentially leading to full server compromise.
Likely Case
Authenticated users accessing internal services to steal sensitive data or perform reconnaissance on internal network segments.
If Mitigated
Limited to authenticated users only accessing non-critical internal services if network segmentation is properly implemented.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of vulnerable features. No public exploit code available as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.3.19
Vendor Advisory: https://docs.terminalfour.com/release-notes/security-notices/cve-2024-22217/
Restart Required: Yes
Instructions:
1. Backup your Terminalfour installation and database. 2. Download Terminalfour version 8.3.19 or later from official sources. 3. Follow Terminalfour upgrade procedures as documented. 4. Restart the Terminalfour service. 5. Verify the upgrade completed successfully.
🔧 Temporary Workarounds
Network Segmentation
allRestrict outbound network access from Terminalfour server to only necessary services
Access Control
allReview and restrict user permissions to limit access to vulnerable features
🧯 If You Can't Patch
- Implement strict network egress filtering to block unauthorized outbound requests from Terminalfour server
- Apply principle of least privilege to user accounts and monitor for suspicious SSRF patterns
🔍 How to Verify
Check if Vulnerable:
Check Terminalfour version via admin interface or configuration files. If version is below 8.3.19, system is vulnerable.Check Version:
Check Terminalfour admin dashboard or consult installation documentation for version verification methodVerify Fix Applied:
Confirm Terminalfour version is 8.3.19 or higher via admin interface or version check command.📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from Terminalfour server
- Requests to internal IP addresses or localhost from application
- Access patterns to vulnerable features by authenticated users
Network Indicators:
- Outbound HTTP requests from Terminalfour server to internal network segments
- Requests to cloud metadata services (169.254.169.254, etc.)
SIEM Query:
source="terminalfour" AND (dest_ip=10.0.0.0/8 OR dest_ip=172.16.0.0/12 OR dest_ip=192.168.0.0/16 OR dest_ip=127.0.0.0/8 OR dest_ip=169.254.169.254)