CVE-2019-8140: Magento Unrestricted File Upload Vulnerability
Summary
CVE-2019-8140: Magento Unrestricted file upload vulnerability. Affects magento/community-edition across 2 version ranges.
>= 2.2.0, < 2.2.10
>= 2.3.0, < 2.3.3
Fixed in 2.2.10 or 2.3.3, depending on the release line you run. How to fix ↓
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Background
Magento is an open-source e-commerce platform that provides a flexible and scalable solution for online businesses. It allows users to create and manage their online stores, handle product catalogs, process payments, and perform various other e-commerce functions. However, a vulnerability has been discovered in Magento versions 2.2 prior to 2.2.10 and versions 2.3 prior to 2.3.3 or 2.3.2-p1.
Vulnerability Detail
The vulnerability, identified as CVE-2019-8140, is an unrestricted file upload vulnerability. It affects the Synchronization feature in the Media File Storage of the Magento database. An authenticated admin user can exploit this vulnerability to manipulate the synchronization process and transform an uploaded JPEG file into a PHP file. This can lead to remote code execution and potentially allow an attacker to take control of the affected Magento instance.
How To Fix
Fixed versions by release line
The minimum fixed version depends on the release line you run.
-
>= 2.2.0, < 2.2.102.2.10composer require magento/community-edition:2.2.10 -
>= 2.3.0, < 2.3.32.3.3composer require magento/community-edition:2.3.3
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Workaround
There is no specific workaround mentioned for this vulnerability. However, users can enhance their security posture by implementing additional security measures such as restricting access to the Magento admin panel, implementing strong authentication mechanisms, and regularly monitoring the system for any suspicious activities.
Conclusion
The Magento Unrestricted File Upload vulnerability (CVE-2019-8140) poses a significant risk to Magento installations running versions 2.2 prior to 2.2.10 and versions 2.3 prior to 2.3.3 or 2.3.2-p1. To mitigate this vulnerability, it is crucial to upgrade to the patched versions as soon as possible. Additionally, implementing strong security measures and regularly monitoring the system for any suspicious activities can further enhance the security of the Magento installation. For further support and assistance in vulnerability remediation, you can contact DevNack.com.
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FAQ
The vulnerability allows an authenticated admin user to upload a malicious PHP file, potentially leading to remote code execution and unauthorized access to the affected Magento instance.
Magento versions 2.2 prior to 2.2.10 and versions 2.3 prior to 2.3.3 or 2.3.2-p1 are affected by this vulnerability. Users of these versions should upgrade to the patched versions as soon as possible.
At the time of this report, there is no known public exploit available for this vulnerability. However, it is essential to apply the necessary patches and security updates to mitigate the risk.
While there is no specific workaround mentioned, users can enhance their security posture by implementing additional security measures such as restricting access to the Magento admin panel, implementing strong authentication mechanisms, and regularly monitoring the system for any suspicious activities.
For more information about this vulnerability, you can refer to the official Magento security advisory at [source].
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