CVE-2023-22262
📋 TL;DR
This vulnerability allows low-privilege authenticated attackers in Adobe Experience Manager 6.5.15.0 and earlier to redirect users to malicious websites through URL manipulation. Exploitation requires user interaction, such as clicking a crafted link. Only authenticated users with any privilege level can exploit this issue.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ 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 could use this for phishing campaigns targeting authenticated users, potentially stealing session cookies or credentials.
If Mitigated
With proper user education about suspicious links and network filtering, impact is limited to potential phishing attempts.
🎯 Exploit Status
Exploitation requires authenticated access and user interaction (clicking a link).
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.16.0 or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb23-18.html
Restart Required: Yes
Instructions:
1. Download Adobe Experience Manager 6.5.16.0 or later from Adobe's distribution portal. 2. Apply the Service Pack or cumulative fix pack. 3. Restart the AEM instance. 4. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation Filter
allImplement custom servlet filter to validate and sanitize redirect URLs
Implement Java servlet filter to check 'Location' header and redirect parameters for external domains
Web Application Firewall Rules
allConfigure WAF to block redirects to external domains from AEM endpoints
Add WAF rule: Block HTTP responses with Location header containing external domains from AEM paths
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to restrict redirect destinations
- Educate users about phishing risks and implement email filtering for suspicious links
🔍 How to Verify
Check if Vulnerable:
Check AEM version via CRXDE Lite or system console; if version is 6.5.15.0 or earlier, system is vulnerable.Check Version:
curl -u admin:password http://localhost:4502/system/console/status-productinfo | grep 'Adobe Experience Manager'Verify Fix Applied:
After patching, verify version is 6.5.16.0 or later and test redirect functionality with external URLs.📡 Detection & Monitoring
Log Indicators:
- Unusual redirect patterns in access logs
- Multiple 302 redirect responses to external domains
Network Indicators:
- HTTP 302 responses with Location headers pointing to unexpected external domains
SIEM Query:
source="aem_access.log" AND (status=302 OR status=301) AND Location CONTAINS "http://" AND NOT Location CONTAINS "yourdomain.com"