Critical Magento Vulnerability

Sansec Threat Research Team noticed a surge in Magento 2 template attacks. This critical template vulnerability in Magento 2 tracked as (CVE-2022-24086) is increasing among eCommerce cyber criminals. The vulnerability allows unauthenticated attackers to execute code on unpatched sites.

Magento is a popular, Adobe-owned open-source e-commerce platform that powers many online shops. More than 150,000 online stores have been created on the platform. As of April 2021, Magento holds a 2.32% market share in global e-commerce platforms.

Critical Magento Vulnerability

Adobe patched this Magento 2 Vulnerability (CVE-2022-24086) in February 2022; later on the security researchers have created exploit code for the vulnerability that opens a way to mass exploitation. 

Sansec researchers shared findings of 3 template hacks. The report says the observed attacks have been interactive; since the Magento checkout flow is very hard to automate. It starts with the creation of a new customer account and an order placement, which may result in a failed payment.

https://www.bleepstatic.com/images/news/u/1220909/Code%20and%20Details/part-of-inj-code.png
Part of the Injected Template Code

Experts say, this downloads a Linux executable called 223sam(.)jpg and launches it as a background process.

“It is actually a Remote Access Trojan (RAT). While it remains in memory, it creates a state file and polls a remote server hosted in Bulgaria for commands”, Sansec

Researchers pointed out that RAT has full access to the database and the running PHP processes. Also, RAT can be injected on any of the nodes in a multi-server cluster environment.

Another variation of this attack is the attempted injection of a health_check.php backdoor. It creates a new file accepting commands via the POST parameter:

Malicious PHP file

A third attack variation has this template code, which replaces generated/code/Magento/Framework/App/FrontController/Interceptor.php. This malware is then executed on every Magento page request.

PHP eval Backdoor Created

Therefore, experts recommend the Magento 2 site administrators to upgrade their software to the latest version.

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Gurubaran is a PKI Security Engineer. Certified Ethical Hacker, Penetration Tester, Security blogger, Co-Founder & Author of GBHackers On Security.

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