CVE-2024-54048
📋 TL;DR
This reflected Cross-Site Scripting (XSS) vulnerability in Adobe Connect allows attackers to execute malicious JavaScript in victims' browsers by tricking them into clicking specially crafted URLs. Unauthenticated attackers can exploit this to steal session cookies, redirect users, or perform actions on their behalf. All users of affected Adobe Connect versions are potentially at risk.
💻 Affected Systems
- Adobe Connect
📦 What is this software?
Connect by Adobe
Connect by Adobe
⚠️ Risk & Real-World Impact
Worst Case
Attacker steals administrator session cookies, gains full control of Adobe Connect instance, accesses sensitive meeting data, and potentially compromises user accounts.
Likely Case
Attacker steals user session cookies to impersonate victims, accesses their meeting content, or redirects them to malicious sites.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before execution, preventing successful exploitation.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) but no authentication. Attack complexity is low once malicious URL is crafted.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to Adobe Connect 12.7 or later, or 11.4.8 or later
Vendor Advisory: https://helpx.adobe.com/security/products/connect/apsb24-99.html
Restart Required: Yes
Instructions:
1. Download latest Adobe Connect version from Adobe website. 2. Backup current installation and data. 3. Install the update following Adobe's documentation. 4. Restart Adobe Connect services. 5. Verify successful update.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block XSS payloads in URL parameters
Input Validation Filter
allAdd server-side input validation to sanitize URL parameters
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Use browser security extensions that block reflected XSS attacks
🔍 How to Verify
Check if Vulnerable:
Check Adobe Connect version in administration console or via version file in installation directoryCheck Version:
Check Admin Console > About or examine version.txt in installation directoryVerify Fix Applied:
Verify version number is 12.7+ or 11.4.8+ in administration console📡 Detection & Monitoring
Log Indicators:
- Unusual long URLs with script tags in access logs
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests with suspicious parameters containing JavaScript code
- URLs with encoded script payloads
SIEM Query:
web_access_logs | where url contains "<script>" or url contains "javascript:" or url contains "onerror="