CVE-2024-0648: Security Advisory and Response

This CVE involves a critical vulnerability in Yunyou CMS up to version 2.2.6, allowing for unrestricted upload due to a flaw in the Common.php file.

Understanding CVE-2024-0648

This vulnerability, identified as VDB-251374, poses a significant threat as it enables unauthorized users to upload files without restriction, potentially leading to further exploitation.

What is CVE-2024-0648?

The vulnerability in Yunyou CMS up to version 2.2.6 resides in the /app/index/controller/Common.php file. By manipulating the templateFile argument, attackers can upload files without proper authorization. The exploit can be initiated remotely, posing a serious security risk.

The Impact of CVE-2024-0648

With a CVSS base score of 7.3 (High), this vulnerability can result in unauthorized file uploads, potentially leading to information disclosure, confidentiality breaches, and other malicious activities. It requires immediate attention to prevent exploitation.

Technical Details of CVE-2024-0648

This section dives into the specifics of the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

The flaw in Yunyou CMS up to version 2.2.6 allows for unrestricted file uploads via manipulation of the templateFile argument in the /app/index/controller/Common.php file. This critical vulnerability can be exploited remotely, making it a serious security concern.

Affected Systems and Versions

Yunyou CMS versions 2.2.0 to 2.2.6 are impacted by CVE-2024-0648. Users operating these versions are at risk of falling victim to the unrestricted upload vulnerability.

Exploitation Mechanism

Attackers can leverage this vulnerability by sending crafted requests to the target system, exploiting the flaw in Yunyou CMS to upload files without proper authorization. This could potentially lead to further compromise of the system.

Mitigation and Prevention

To address CVE-2024-0648 effectively, certain immediate steps, long-term security practices, and patching strategies should be implemented to secure systems and mitigate the risk associated with this critical vulnerability.

Immediate Steps to Take

Organizations using Yunyou CMS versions 2.2.0 to 2.2.6 should disable file uploads or implement strict access controls to prevent unauthorized uploads. It is crucial to monitor system activity for any signs of exploitation.

Long-Term Security Practices

Implementing secure coding practices, regular security audits, and keeping software up to date can help prevent similar vulnerabilities from emerging in the future. Educating users on safe file upload procedures is also essential.

Patching and Updates

Vendor-supplied patches and updates should be applied promptly to address the vulnerability in Yunyou CMS. By staying current with security patches, organizations can effectively mitigate the risk of unauthorized file uploads and enhance overall system security.