CVE-2019-8126 Explained : Impact and Mitigation
Learn about CVE-2019-8126 affecting Magento 2.2 before 2.2.10, 2.3 before 2.3.3, or 2.3.2-p1. Find out how an authenticated admin user can exploit XML entity injection to access sensitive information.
Magento versions 2.2 before 2.2.10, 2.3 before 2.3.3, or 2.3.2-p1 are affected by an XML entity injection vulnerability that allows an authenticated admin user to process external entities, potentially leading to information disclosure.
Understanding CVE-2019-8126
This CVE involves an XML entity injection vulnerability in specific versions of Magento, potentially enabling unauthorized access to sensitive information.
What is CVE-2019-8126?
Magento versions 2.2 prior to 2.2.10, 2.3 prior to 2.3.3, or 2.3.2-p1 are susceptible to XML entity injection. This vulnerability allows authenticated admin users to manipulate XML layout documents, leading to the processing of external entities and potential data exposure.
The Impact of CVE-2019-8126
The vulnerability poses a risk of information disclosure, where sensitive data could be accessed by exploiting the XML entity injection flaw.
Technical Details of CVE-2019-8126
This section provides in-depth technical insights into the vulnerability.
Vulnerability Description
An XML entity injection vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3, or 2.3.2-p1. Authenticated admin users can create a specific XML layout document definition, enabling the processing of external entities and potential information disclosure.
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
The vulnerability allows authenticated admin users to craft XML layout documents, leading to the processing of external entities and potential data exposure.
Mitigation and Prevention
Protecting systems from CVE-2019-8126 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply the security update provided by Magento to patch the vulnerability.
- Monitor system logs for any suspicious activities.
Long-Term Security Practices
- Regularly update Magento and other software to the latest versions.
- Educate admin users on secure coding practices and potential vulnerabilities.
Patching and Updates
- Magento has released security updates for versions 2.2.10 and 2.3.3 to address the XML entity injection vulnerability.