CVE-2020-9742 : Vulnerability Insights and Analysis
Learn about CVE-2020-9742, a critical stored XSS vulnerability in Adobe Experience Manager versions 6.5.5.0 and below, 6.4.8.1 and below, and 6.3.3.8 and below. Find out the impact, affected systems, and mitigation steps.
A stored XSS vulnerability in Adobe Experience Manager versions 6.5.5.0 and below, 6.4.8.1 and below, and 6.3.3.8 and below allows malicious scripts to be executed by users with 'Author' privileges.
Understanding CVE-2020-9742
This CVE involves a reflected XSS vulnerability in the AEM Inbox module.
What is CVE-2020-9742?
CVE-2020-9742 is a critical vulnerability in Adobe Experience Manager that enables users with specific privileges to store and execute malicious scripts through the Inbox calendar feature.
The Impact of CVE-2020-9742
The vulnerability has a CVSS base score of 9.0, indicating a critical severity level with high impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2020-9742
This section provides more technical insights into the vulnerability.
Vulnerability Description
AEM versions 6.5.5.0 and below, 6.4.8.1 and below, and 6.3.3.8 and below are susceptible to stored XSS attacks, allowing threat actors to execute malicious scripts.
Affected Systems and Versions
- Product: Adobe Experience Manager
- Versions: 6.5.5.0 and below, 6.4.8.1 and below, 6.3.3.8 and below
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: Required
- Scope: Changed
- Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Mitigation and Prevention
Protecting systems from CVE-2020-9742 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Adobe promptly.
- Restrict access to vulnerable features for users with 'Author' privileges.
- Educate users on safe browsing practices to mitigate the risk of executing malicious scripts.
Long-Term Security Practices
- Regularly update and patch Adobe Experience Manager to address security vulnerabilities.
- Conduct security training for users to enhance awareness of potential threats.
Patching and Updates
- Adobe has released security updates to address the vulnerability. Ensure all systems are updated to the latest patched versions.