CVE-2020-9735 : What You Need to Know
Learn about CVE-2020-9735, a stored XSS vulnerability in Adobe Experience Manager versions 6.5.5.0 and below. Find out the impact, affected systems, and mitigation steps.
A stored XSS vulnerability in Adobe Experience Manager (AEM) versions 6.5.5.0 and below, 6.4.8.1 and below, 6.3.3.8 and below, and 6.2 SP1-CFP20 and below allows malicious scripts to be stored in certain node fields, potentially leading to script execution in a victim's browser.
Understanding CVE-2020-9735
This CVE involves a stored XSS vulnerability in Adobe Experience Manager (AEM) versions.
What is CVE-2020-9735?
AEM versions 6.5.5.0 and below, 6.4.8.1 and below, 6.3.3.8 and below, and 6.2 SP1-CFP20 and below are affected by a stored XSS vulnerability that enables the execution of malicious scripts in a victim's browser.
The Impact of CVE-2020-9735
The vulnerability allows users with access to the Content Repository Development Environment to store harmful scripts in specific node fields, which can be triggered when the vulnerable field is included in search query results.
Technical Details of CVE-2020-9735
This section provides technical details of the vulnerability.
Vulnerability Description
The vulnerability in AEM versions allows for the storage of malicious scripts in certain node fields, leading to potential script execution in a victim's browser.
Affected Systems and Versions
- Adobe Experience Manager (AEM) versions 6.5.5.0 and below
- Adobe Experience Manager (AEM) versions 6.4.8.1 and below
- Adobe Experience Manager (AEM) versions 6.3.3.8 and below
- Adobe Experience Manager (AEM) versions 6.2 SP1-CFP20 and below
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- User Interaction: Required
- Scope: Unchanged
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Mitigation and Prevention
Protecting systems from the CVE-2020-9735 vulnerability is crucial.
Immediate Steps to Take
- Apply security patches provided by Adobe promptly.
- Restrict access to the Content Repository Development Environment.
- Regularly monitor and audit node fields for malicious scripts.
Long-Term Security Practices
- Educate users on safe coding practices to prevent XSS vulnerabilities.
- Implement input validation and output encoding to mitigate XSS risks.
Patching and Updates
- Ensure all AEM instances are updated with the latest security patches from Adobe.