CVE-2019-7855 : What You Need to Know
Learn about CVE-2019-7855, a cryptographic vulnerability in Magento 2.1, 2.2, and 2.3 allowing unauthorized users to reveal a constant value used in gift card creation. Find mitigation steps here.
An unauthenticated user could potentially exploit a cryptographic vulnerability in Magento versions 2.1 (prior to 2.1.18), 2.2 (prior to 2.2.9), and 2.3 (prior to 2.3.2) to uncover a constant value utilized in the creation of gift cards.
Understanding CVE-2019-7855
This CVE involves a cryptographic flaw in specific versions of Magento that could be exploited by unauthorized users.
What is CVE-2019-7855?
CVE-2019-7855 is a vulnerability in Magento versions 2.1, 2.2, and 2.3 that allows unauthenticated users to exploit a cryptographic flaw to reveal a constant value used in generating gift cards.
The Impact of CVE-2019-7855
The vulnerability could lead to unauthorized access to sensitive information, potentially compromising the security and integrity of the affected Magento installations.
Technical Details of CVE-2019-7855
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The cryptographic flaw in Magento versions 2.1.18, 2.2.9, and 2.3.2 enables unauthenticated users to discover a constant value crucial for gift card creation.
Affected Systems and Versions
- Product: Magento 2
- Versions Affected: Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2
Exploitation Mechanism
The vulnerability allows unauthenticated users to exploit the cryptographic weakness in the affected Magento versions to reveal the constant value used in gift card generation.
Mitigation and Prevention
Protecting systems from CVE-2019-7855 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply the security patch provided by Magento for versions 2.1.18, 2.2.9, and 2.3.2.
- Monitor for any unauthorized access or suspicious activities on the Magento platform.
Long-Term Security Practices
- Regularly update Magento installations to the latest secure versions.
- Implement strong authentication mechanisms to prevent unauthorized access.
Patching and Updates
- Ensure timely installation of security patches released by Magento to address vulnerabilities like CVE-2019-7855.