CVE-2019-8133 : Security Advisory and Response
Learn about CVE-2019-8133 affecting Magento 2.2 prior to 2.2.10 and 2.3 prior to 2.3.3 or 2.3.2-p1. Discover the impact, affected systems, exploitation, and mitigation steps.
Magento versions 2.2 before 2.2.10, 2.3 before 2.3.3 or 2.3.2-p1 have a security vulnerability that enables bypassing of the system's directory access restrictions, potentially leading to a denial of service.
Understanding CVE-2019-8133
This CVE involves a security bypass vulnerability in specific versions of Magento, allowing users with sitemap generation privileges to overwrite configuration files.
What is CVE-2019-8133?
The vulnerability in Magento versions 2.2 prior to 2.2.10 and 2.3 prior to 2.3.3 or 2.3.2-p1 permits users to bypass directory access restrictions, potentially resulting in a denial of service attack.
The Impact of CVE-2019-8133
Exploiting this vulnerability can lead to the overwrite of critical configuration files, which may disrupt the system's functionality and cause a denial of service.
Technical Details of CVE-2019-8133
This section provides detailed technical information about the CVE.
Vulnerability Description
The security flaw allows users with specific privileges to bypass directory access restrictions, potentially leading to a denial of service by overwriting configuration files.
Affected Systems and Versions
- Product: Magento 2
- Vendor: Adobe Systems Incorporated
- Affected Versions:
- Magento 2.2 prior to 2.2.10
- Magento 2.3 prior to 2.3.3 or 2.3.2-p1
Exploitation Mechanism
Users with the privilege to generate sitemaps can exploit this vulnerability to bypass directory access restrictions and overwrite critical configuration files, potentially causing a denial of service.
Mitigation and Prevention
Protect your systems from CVE-2019-8133 with the following steps:
Immediate Steps to Take
- Apply the security patch provided by Magento for versions 2.2.10 and 2.3.3.
- Restrict access to sitemap generation privileges to trusted users only.
- Monitor system configuration files for unauthorized changes.
Long-Term Security Practices
- Regularly update and patch your Magento installation to prevent known vulnerabilities.
- Implement the principle of least privilege to restrict user access based on their roles and responsibilities.
Patching and Updates
- Ensure timely installation of security patches released by Magento to address vulnerabilities like CVE-2019-8133.