CVE-2024-50658
📋 TL;DR
This CVE describes a Server-Side Template Injection vulnerability in AdPortal 3.0.39 that allows remote attackers to execute arbitrary code by manipulating the shippingAsBilling and firstname parameters. Attackers can achieve remote code execution on affected systems, potentially compromising the entire server. Organizations running AdPortal 3.0.39 are affected.
💻 Affected Systems
- AdPortal
📦 What is this software?
Adportal by Ipublishmedia
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, steal sensitive data, install malware, pivot to other systems, and maintain persistent access.
Likely Case
Remote code execution leading to data theft, website defacement, or deployment of ransomware/cryptominers on vulnerable servers.
If Mitigated
Limited impact if proper network segmentation, WAF rules, and input validation are in place, though the vulnerability remains exploitable.
🎯 Exploit Status
The vulnerability is publicly documented with technical details, making exploitation straightforward for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Check vendor website for updates or consider alternative solutions.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and sanitization for shippingAsBilling and firstname parameters to block template injection attempts.
WAF Rule Implementation
allDeploy Web Application Firewall rules to detect and block SSTI payloads targeting the vulnerable endpoints.
🧯 If You Can't Patch
- Block access to updateuserinfo.html endpoint at network perimeter or application firewall
- Implement strict network segmentation to isolate AdPortal from critical systems
🔍 How to Verify
Check if Vulnerable:
Test if template injection payloads in shippingAsBilling or firstname parameters trigger server-side template evaluation. Example: ${7*7} returning 49.Check Version:
Check AdPortal version in admin interface or configuration files. Typically found in /admin or configuration settings.Verify Fix Applied:
Verify that template injection payloads no longer execute and return sanitized output or error messages.📡 Detection & Monitoring
Log Indicators:
- Unusual template syntax in shippingAsBilling or firstname parameters
- Multiple failed template injection attempts
- Suspicious file operations or command execution
Network Indicators:
- HTTP requests to updateuserinfo.html with template syntax payloads
- Unusual outbound connections from AdPortal server
SIEM Query:
source="adportal_logs" AND (uri="*updateuserinfo.html*" AND (param="*shippingAsBilling*" OR param="*firstname*") AND value="*${*" OR value="*<%*" OR value="*{{*"))