CVE-2024-43730
📋 TL;DR
Adobe Experience Manager versions 6.5.21 and earlier contain a stored Cross-Site Scripting (XSS) vulnerability where attackers can inject malicious scripts into form fields. When users visit pages containing these compromised fields, their browsers execute the attacker's JavaScript. This affects organizations using vulnerable Adobe Experience Manager instances for content management.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, redirect to malicious sites, or install malware on user systems through browser exploitation.
Likely Case
Session hijacking, credential theft, defacement of web pages, or unauthorized actions within the AEM interface.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Stored XSS typically requires some level of access to input fields, but exploitation is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.22 or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb24-69.html
Restart Required: Yes
Instructions:
1. Download Adobe Experience Manager 6.5.22 or later from Adobe's distribution portal. 2. Apply the service pack following Adobe's installation guide. 3. Restart the AEM instance. 4. Verify the update was successful.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to web server configuration
Input Validation Filter
allImplement server-side input validation for all form fields
Configure AEM filters to sanitize user input before storage
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers
- Review and restrict user permissions for content editing
🔍 How to Verify
Check if Vulnerable:
Check AEM version via OSGi console or CRXDE Lite. If version is 6.5.21 or earlier, system is vulnerable.Check Version:
curl -u admin:password http://localhost:4502/system/console/status-productinfo.json | grep 'Adobe Experience Manager'Verify Fix Applied:
Verify AEM version is 6.5.22 or later and test form fields for XSS payload acceptance.📡 Detection & Monitoring
Log Indicators:
- Unusual content modifications in CRX repository
- Suspicious script tags in content nodes
- Multiple failed XSS attempts in request logs
Network Indicators:
- Unexpected external script loads from AEM pages
- Suspicious POST requests to content update endpoints
SIEM Query:
source="aem_logs" AND ("script" OR "javascript" OR "onload" OR "onerror") AND event_type="content_update"