CVE-2020-9645
📋 TL;DR
Adobe Experience Manager versions 6.5 and earlier contain a blind server-side request forgery (SSRF) vulnerability that allows attackers to make unauthorized requests from the server to internal systems. This could lead to sensitive information disclosure from internal services. Organizations running affected Adobe Experience Manager instances are at risk.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access sensitive internal systems, retrieve credentials or data from internal APIs, and potentially pivot to other network resources.
Likely Case
Information disclosure from internal services accessible to the server, potentially exposing configuration data, internal API responses, or metadata.
If Mitigated
Limited impact if network segmentation restricts server access to sensitive internal systems and proper input validation is implemented.
🎯 Exploit Status
Exploitation requires specific conditions and knowledge of internal systems, but SSRF vulnerabilities are commonly exploited in real-world attacks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Adobe Experience Manager 6.5 Service Pack 5 (6.5.5.0) or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb20-31.html
Restart Required: Yes
Instructions:
1. Download the latest service pack from Adobe's distribution portal. 2. Backup your current installation. 3. Apply the service pack following Adobe's installation guide. 4. Restart the AEM service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Network Segmentation
allRestrict the AEM server's network access to only necessary internal services
Input Validation
allImplement strict input validation for all URL parameters and user inputs
🧯 If You Can't Patch
- Implement strict network segmentation to limit the AEM server's access to internal systems
- Deploy a web application firewall (WAF) with SSRF protection rules
🔍 How to Verify
Check if Vulnerable:
Check your Adobe Experience Manager version via the AEM welcome page or system consoleCheck Version:
Check the AEM welcome page at http://[host]:[port]/libs/granite/operations/content/systemoverview.html or use the AEM system consoleVerify Fix Applied:
Verify you are running version 6.5.5.0 or later and check that the patch has been applied📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from the AEM server
- Requests to internal IP addresses or services from the AEM application
Network Indicators:
- AEM server making unexpected HTTP requests to internal systems
- Traffic from AEM server to non-standard internal ports
SIEM Query:
source_ip=AEM_SERVER_IP AND (dest_ip=INTERNAL_RANGE OR dest_port!=80,443) AND protocol=HTTP