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PrestaShop Sites Hit by Severe Security Flaw

The store must be vulnerable to SQL injection attacks for the attack to succeed.

 


Hackers are using a blend of known and undiscovered security flaws to insert malicious software into e-commerce websites running the PrestaShop platform, according to an urgent advisory from PrestaShop. There are currently 300,000 stores using PrestaShop, which is available in 60 different languages.

Operation objective:

Hackers exploit businesses that are utilizing out-of-date software or modules, susceptible third-party modules, or a vulnerability that has not yet been identified. The store must be vulnerable to SQL injection attacks for the attack to succeed. PrestaShop versions 1.6.0.10 and later and versions 1.7.8.2 and after running modules susceptible to SQL injection are also affected by the vulnerability.

The repeating method is stated in the PrestaShop security bulletin as follows:
  • A POST request is made by the hacker to a vulnerability endpoint to SQL injection.
  • The hacker sends a GET request to the homepage without any parameters after around a second.
  • This triggers the creation of a PHP file with the name blm.php at the root of the shop's directory.
  • The attacker now sends a GET request to the newly constructed file, blm.php, enabling them to carry out any command.
The hackers likely exploited this web shell to insert a scam payment form on the store's checkout page and steal payment card information from customers. To keep the site owner from learning that they had been compromised, the remote threat actors erased their trails after the attack.

Security measures 

Ensure that the site is updated to the most recent version, as well as all of its modules. Compromise site managers may discover entries in the web server's access logs for clues that they were compromised if the hackers weren't careful with the cleanup of evidence.

The addition of malicious software to files through file modifications and the activation of the MySQL Smarty cache storage, which is a component of the attack chain, are additional indications of compromise.

Because of the exploit's intricacy, there are various techniques to use it, and hackers might also try to cover their traces. To ensure that no file has been edited or malicious software has been installed, think about hiring a professional to conduct a thorough audit of the website.



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Malicious Code

MySQL

PHP

SQL Injection

Vulnerabilities and Exploits.

Zero- day vulnerability