CVE-2023-33177 : Vulnerability Insights and Analysis
Learn about CVE-2023-33177, a path traversal vulnerability in Xibo CMS that allows remote code execution. Update to versions 2.3.17 or 3.3.5 to mitigate the risk.
A path traversal vulnerability in Xibo CMS allows remote code execution through a crafted zip file upload. Upgrading to version 2.3.17 or 3.3.5 is crucial for mitigation.
Understanding CVE-2023-33177
Xibo CMS is susceptible to remote code execution due to a path traversal flaw that can be exploited by authenticated users uploading specially crafted zip files via the layout import function.
What is CVE-2023-33177?
Xibo CMS, a content management system, is impacted by a path traversal vulnerability. This flaw enables users to upload malicious files outside the CMS library directory, leading to remote code execution on the webserver.
The Impact of CVE-2023-33177
The vulnerability can be leveraged to upload PHP webshells and execute arbitrary code on the server, posing a severe risk to the confidentiality, integrity, and availability of the system.
Technical Details of CVE-2023-33177
The vulnerability is scored 8.8 (High Severity) according to CVSS v3.1 metrics. It has a low attack complexity and requires no user interaction, making it a high-impact issue.
Vulnerability Description
An attacker can exploit the path traversal flaw in Xibo CMS to upload malicious files outside the intended directory, potentially leading to unauthorized remote code execution.
Affected Systems and Versions
Xibo CMS versions between 1.8.0 and 2.3.17, as well as versions between 3.0.0 and 3.3.5, are vulnerable to this exploit.
Exploitation Mechanism
By uploading a specially crafted zip file via the layout import function, an authenticated user can create files outside the CMS library directory, allowing for the execution of arbitrary code.
Mitigation and Prevention
It is crucial for users to take immediate action to protect their systems from CVE-2023-33177 by following these security practices.
Immediate Steps to Take
Users are advised to upgrade their Xibo CMS to version 2.3.17 or 3.3.5 to patch the vulnerability and prevent potential exploitation.
Long-Term Security Practices
Regularly monitoring and updating the CMS, as well as implementing strong access controls and file upload restrictions, can help enhance the overall security posture.
Patching and Updates
Users should ensure timely installation of patches and updates provided by Xibo Signage to address the vulnerability and protect their systems from remote code execution.