CVE-2024-36406
📋 TL;DR
SuiteCRM versions before 7.14.4 and 8.6.1 contain an open redirect vulnerability due to unchecked input. This allows attackers to redirect users to malicious websites after they click on manipulated links. 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
Users could be redirected to phishing sites that steal credentials or deliver malware, potentially leading to account compromise or system infection.
Likely Case
Attackers use the vulnerability for phishing campaigns, tricking users into visiting malicious sites that may steal session cookies or credentials.
If Mitigated
With proper user education about suspicious links and browser security controls, impact is limited to potential reputation damage from malicious redirects.
🎯 Exploit Status
Open redirect vulnerabilities typically require user interaction (clicking a link) but are straightforward to exploit once the vulnerable parameter is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.14.4 or 8.6.1
Vendor Advisory: https://github.com/salesagility/SuiteCRM/security/advisories/GHSA-hcw8-p37h-8hrv
Restart Required: No
Instructions:
1. Backup your SuiteCRM instance and database. 2. Download the patched version (7.14.4 or 8.6.1) from the official SuiteCRM repository. 3. Follow the SuiteCRM upgrade documentation for your version. 4. Verify the upgrade completed successfully.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to reject or sanitize URLs containing external domains in redirect parameters.
Web Application Firewall Rule
allConfigure WAF to block requests containing suspicious redirect parameters or external URLs in redirect fields.
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to restrict redirect destinations
- Educate users about phishing risks and implement email/link scanning for suspicious redirects
🔍 How to Verify
Check if Vulnerable:
Check SuiteCRM version in admin panel or via version.php file. If version is below 7.14.4 (for 7.x) or below 8.6.1 (for 8.x), the system is vulnerable.Check Version:
Check /suitecrm/version.php or admin panel → About SuiteCRMVerify Fix Applied:
After patching, verify version shows 7.14.4 or higher (for 7.x) or 8.6.1 or higher (for 8.x). Test redirect functionality with malicious payloads to confirm they are blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual redirect patterns in web server logs
- Requests with external URLs in redirect parameters
- Multiple failed redirect attempts
Network Indicators:
- HTTP 302/301 redirects to unexpected external domains
- Suspicious referrer headers containing redirect parameters
SIEM Query:
web.url:*redirect* AND web.url:*http* AND NOT web.url:*yourdomain.com*