CVE-2021-44177 : Vulnerability Insights and Analysis

Adobe Experience Manager Stored XSS in user name parameter in the package manager

Understanding CVE-2021-44177

What is CVE-2021-44177?

Adobe Experience Manager (AEM) versions 6.5.10.0 and below, including AEM's Cloud Service offering, are vulnerable to a stored Cross-Site Scripting (XSS) issue. This vulnerability allows an attacker to inject malicious scripts into form fields, potentially leading to the execution of malicious JavaScript in a victim's browser.

The Impact of CVE-2021-44177

The vulnerability has a CVSS v3.1 base score of 8.1 (High severity) with high impacts on confidentiality, integrity, and the need for user interaction for exploitation.

Technical Details of CVE-2021-44177

Vulnerability Description

The vulnerability in Adobe Experience Manager allows attackers to perform stored XSS attacks by injecting malicious scripts into vulnerable form fields.

Affected Systems and Versions

Adobe Experience Manager versions 6.5.10.0 and below, including custom versions.

Exploitation Mechanism

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Impact: High severity on confidentiality and integrity
Exploitation may lead to the execution of malicious scripts in victims' browsers.

Mitigation and Prevention

Immediate Steps to Take

Update Adobe Experience Manager to a patched version immediately.
Implement web application firewalls to filter and block malicious inputs.
Educate users about potential phishing attacks and safe browsing habits.

Long-Term Security Practices

Conduct regular security assessments and code reviews to identify and remediate vulnerabilities.
Stay informed about security advisories and updates from Adobe.

Patching and Updates

Apply security patches and updates provided by Adobe to mitigate the vulnerability.