CVE-2022-23043 : Security Advisory and Response
CVE-2022-23043 allows attackers to bypass file upload restrictions in Zenario CMS 9.2, potentially leading to remote code execution. Learn about the impact, affected versions, and mitigation steps.
A security vulnerability, CVE-2022-23043, has been identified in Zenario CMS version 9.2. This CVE allows an authenticated admin user to bypass file upload restrictions, potentially leading to remote code execution (RCE) attacks.
Understanding CVE-2022-23043
This section provides insights into the nature of the vulnerability and its potential impact.
What is CVE-2022-23043?
The vulnerability in Zenario CMS 9.2 enables an authenticated admin user to circumvent file upload restrictions by creating a new 'File/MIME Types' using the '.phar' extension. Subsequently, an attacker can upload a malicious file, intercept the request, and change the extension to '.phar' to execute commands on the server.
The Impact of CVE-2022-23043
The exploitation of this vulnerability can result in unauthorized execution of commands on the server, potentially leading to complete compromise of the affected system.
Technical Details of CVE-2022-23043
Delve into the technical aspects of the CVE, including how it can be mitigated and prevented.
Vulnerability Description
The vulnerability arises from an insecure file upload mechanism in Zenario CMS 9.2, allowing attackers to upload and run malicious files with the '.phar' extension.
Affected Systems and Versions
Zenario CMS version 9.2 is specifically impacted by this vulnerability.
Exploitation Mechanism
By abusing the file upload functionality and manipulating the file extension to '.phar', threat actors can execute arbitrary commands on the server.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2022-23043 and prevent potential exploitation.
Immediate Steps to Take
It is recommended to restrict file upload permissions for admin users and monitor file upload activities for suspicious behavior.
Long-Term Security Practices
Implement secure coding practices, perform regular security assessments, and keep software up to date to prevent vulnerabilities.
Patching and Updates
Ensure that Zenario CMS is updated to a secure version that patches the file upload bypass vulnerability present in version 9.2.