CVE-2024-6449
📋 TL;DR
CVE-2024-6449 is a cross-site scripting (XSS) vulnerability in HyperView Geoportal Toolkit that allows unauthenticated attackers to inject and execute malicious scripts via manipulated GET parameters. This affects all users of HyperView Geoportal Toolkit versions below 8.5.0. The vulnerability enables script execution in user browsers and limited network reconnaissance.
💻 Affected Systems
- HyperView Geoportal Toolkit
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of user sessions, credential theft, malware distribution to all users accessing vulnerable pages, and internal network device enumeration.
Likely Case
Session hijacking, credential theft from authenticated users, and limited internal network reconnaissance.
If Mitigated
Limited impact if proper input validation and output encoding are implemented, though some reconnaissance capability may remain.
🎯 Exploit Status
Exploitation requires crafting malicious URLs but does not require authentication or special privileges.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.5.0
Vendor Advisory: https://cert.pl/en/posts/2024/08/CVE-2024-6449
Restart Required: Yes
Instructions:
1. Download HyperView Geoportal Toolkit version 8.5.0 or higher
2. Backup current installation and configuration
3. Install the updated version following vendor documentation
4. Restart all affected services
5. Verify functionality post-upgrade
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation for all GET parameters to reject cross-domain URLs
Implement server-side validation to check URL parameters against allowed domains
Content Security Policy
allImplement strict Content-Security-Policy headers to restrict script sources
Add header: Content-Security-Policy: script-src 'self'
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block requests with suspicious URL parameters
- Restrict network access to vulnerable systems using network segmentation and firewall rules
🔍 How to Verify
Check if Vulnerable:
Check if HyperView Geoportal Toolkit version is below 8.5.0 by examining version files or administrative interfaceCheck Version:
Check version in web interface or configuration files specific to HyperView Geoportal Toolkit installationVerify Fix Applied:
Confirm version is 8.5.0 or higher and test that cross-domain requests are properly restricted📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests with external URLs in parameters
- Multiple failed requests with crafted URL parameters
- Requests to known malicious domains from server logs
Network Indicators:
- Outbound connections to suspicious domains from the server
- Unusual traffic patterns from user browsers to external domains
SIEM Query:
source="web_server_logs" AND (url="*http://*" OR url="*https://*") AND url_parameter="*" AND status=200