CVE-2021-21019 : Exploit Details and Defense Strategies
Critical Magento Commerce vulnerability (CVE-2021-21019) allows remote code execution. Learn impact, affected versions, and mitigation steps. Published on February 9, 2021, by Adobe.
Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier), and 2.3.6 (and earlier) are vulnerable to XML injection in the Widgets module. Exploiting this vulnerability could result in arbitrary code execution by an authenticated attacker. This CVE was made public on February 9, 2021, by Adobe.
Understanding CVE-2021-21019
This section provides insight into the nature and impact of the CVE.
What is CVE-2021-21019?
This CVE identifies a vulnerability in Magento Commerce versions, allowing XML injection in the Widgets module. Successful exploitation could lead to remote code execution by an authenticated attacker with access to the admin console.
The Impact of CVE-2021-21019
The impact of this CVE is critical, with a CVSS base score of 9.1 (Critical). It can result in high impact on confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2021-21019
In this section, we delve into the technical aspects of the CVE.
Vulnerability Description
The vulnerability allows attackers to perform XML injection in Magento Commerce versions, potentially leading to unauthorized code execution.
Affected Systems and Versions
Magento Commerce versions 2.4.1, 2.4.0-p1, and 2.3.6 (and earlier) are confirmed to be affected by this vulnerability.
Exploitation Mechanism
Successful exploitation of this vulnerability requires an authenticated attacker to inject malicious XML code through the Widgets module.
Mitigation and Prevention
This section outlines measures to mitigate the risks associated with CVE-2021-21019.
Immediate Steps to Take
Magento users should apply patches released by Adobe promptly. Restrict admin console access to authorized personnel only.
Long-Term Security Practices
Regular security audits, code reviews, and employee training on secure coding practices are recommended to prevent similar vulnerabilities.
Patching and Updates
Keep Magento Commerce installations updated with the latest security patches and version releases to shield against potential exploits.