CVE-2021-36040 : What You Need to Know
Learn about CVE-2021-36040 affecting Magento Commerce versions 2.4.2, 2.4.2-p1, and 2.3.7. Understand the impact, technical details, and mitigation steps for this critical vulnerability.
Magento Commerce versions 2.4.2, 2.4.2-p1, and 2.3.7 are affected by an improper input validation vulnerability that could lead to remote code execution when exploited by an attacker with admin privileges.
Understanding CVE-2021-36040
This CVE identifies a critical vulnerability in Magento Commerce that could have severe consequences if not addressed promptly.
What is CVE-2021-36040?
Magento Commerce versions 2.4.2, 2.4.2-p1, and 2.3.7 are susceptible to a flaw that allows an attacker with admin privileges to upload a specially crafted file, bypassing file extension restrictions and potentially executing remote code.
The Impact of CVE-2021-36040
The impact of this vulnerability is rated as high, with critical severity. An attacker exploiting this vulnerability could compromise the confidentiality, integrity, and availability of the affected system, leading to potential remote code execution.
Technical Details of CVE-2021-36040
This section details the vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper input validation in Magento Commerce, enabling an attacker to upload malicious files and execute arbitrary remote code.
Affected Systems and Versions
Magento Commerce versions 2.4.2, 2.4.2-p1, and 2.3.7 are confirmed to be impacted by this vulnerability, with potential consequences for systems using these versions.
Exploitation Mechanism
An attacker with admin privileges can exploit this vulnerability by uploading a specially crafted file that bypasses file extension restrictions. This could result in the execution of remote code on the target system.
Mitigation and Prevention
Taking immediate steps to secure the system and implementing long-term security practices can help mitigate the risks associated with CVE-2021-36040.
Immediate Steps to Take
It is recommended to apply security patches provided by Adobe promptly. Additionally, restricting admin privileges and monitoring file uploads can help prevent exploitation of this vulnerability.
Long-Term Security Practices
Implementing a robust security posture, conducting regular security assessments, and staying updated on security advisories can enhance the overall security of the system.
Patching and Updates
Regularly applying security patches and updates released by Adobe for Magento Commerce is crucial to address known vulnerabilities and protect the system from potential threats.