CVE-2024-49774
📋 TL;DR
SuiteCRM versions before 7.14.6 and 8.7.1 contain a vulnerability in their malicious MLP (Module Loadable Package) prevention mechanism. Attackers can bypass the function/method blacklist using specific PHP syntax constructions to execute arbitrary code. All SuiteCRM instances running vulnerable versions are affected.
💻 Affected Systems
- SuiteCRM
📦 What is this software?
Suitecrm by Salesagility
Suitecrm by Salesagility
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, and potential lateral movement within the network.
Likely Case
Unauthenticated attackers could upload malicious MLPs to execute arbitrary PHP code, potentially gaining administrative access to the CRM.
If Mitigated
With proper network segmentation and strict access controls, impact could be limited to the CRM application itself.
🎯 Exploit Status
Exploitation requires understanding of PHP AST parsing and blacklist bypass techniques, but no authentication is needed for MLP uploads.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.14.6 or 8.7.1
Vendor Advisory: https://github.com/salesagility/SuiteCRM/security/advisories/GHSA-9v56-vhp4-x227
Restart Required: No
Instructions:
1. Backup your SuiteCRM instance and database. 2. Download the patched version (7.14.6 or 8.7.1) from the official SuiteCRM repository. 3. Replace the vulnerable files with the patched version. 4. Clear the cache and verify functionality.
🧯 If You Can't Patch
- Disable MLP upload functionality entirely in SuiteCRM configuration.
- Implement strict network access controls to limit SuiteCRM access to trusted users only.
🔍 How to Verify
Check if Vulnerable:
Check SuiteCRM version in Admin panel or examine version.php file in the installation directory.Check Version:
grep -E "suitecrm_version|sugar_version" /path/to/suitecrm/version.phpVerify Fix Applied:
Verify version is 7.14.6 or higher for 7.x branch, or 8.7.1 or higher for 8.x branch.📡 Detection & Monitoring
Log Indicators:
- Unusual MLP upload attempts
- PHP execution errors in web server logs
- Unexpected file uploads to SuiteCRM modules directory
Network Indicators:
- HTTP POST requests to MLP upload endpoints with unusual payloads
SIEM Query:
source="suitecrm.logs" AND (event="mlp_upload" OR event="package_install")