CVE-2024-54036
📋 TL;DR
This stored Cross-Site Scripting (XSS) vulnerability in Adobe Connect allows attackers to inject malicious JavaScript into vulnerable form fields. When victims visit pages containing the injected scripts, attackers can steal session cookies and take over user sessions. Organizations using Adobe Connect versions 12.6, 11.4.7 and earlier are affected.
💻 Affected Systems
- Adobe Connect
📦 What is this software?
Connect by Adobe
Connect by Adobe
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of admin accounts leading to full system takeover, data exfiltration, and lateral movement within the organization's network.
Likely Case
Session hijacking of regular users leading to unauthorized access to meetings, recordings, and sensitive collaboration data.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited and require minimal technical skill to weaponize once details are known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to Adobe Connect 12.7 or 11.4.8
Vendor Advisory: https://helpx.adobe.com/security/products/connect/apsb24-99.html
Restart Required: Yes
Instructions:
1. Download the latest Adobe Connect version from Adobe's official site
2. Backup current configuration and data
3. Install the update following Adobe's deployment guide
4. Restart the Adobe Connect service
5. Verify the update was successful
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd strict CSP headers to prevent execution of injected scripts
Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to web server headers
Input Validation Filter
allImplement server-side input validation for all form fields
Implement input sanitization using libraries like OWASP Java Encoder or similar for your platform
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads
- Disable vulnerable form fields or implement strict access controls
🔍 How to Verify
Check if Vulnerable:
Check Adobe Connect version in admin console or via version file in installation directoryCheck Version:
Check admin panel or view /version.txt in web rootVerify Fix Applied:
Verify version is 12.7 or 11.4.8 or later, and test form fields with basic XSS payloads📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to form endpoints with script tags
- Multiple failed login attempts from new locations after form submissions
Network Indicators:
- Outbound connections to suspicious domains after visiting Connect pages
- Unusual traffic patterns to form submission endpoints
SIEM Query:
source="adobe_connect" AND (http_method="POST" AND uri="*/forms/*" AND (body="<script>" OR body="javascript:"))