CVE-2020-10567 : Vulnerability Insights and Analysis

This CVE record pertains to an issue discovered in Responsive Filemanager through version 9.14.0, potentially allowing the execution of PHP code via a legitimate JPEG image with malicious EXIF data.

Understanding CVE-2020-10567

This CVE identifies a vulnerability in Responsive Filemanager that could lead to remote code execution.

What is CVE-2020-10567?

The vulnerability in the ajax_calls.php file of Responsive Filemanager allows for PHP code execution if a valid JPEG image contains malicious code in the EXIF data and the .php extension is used in the name parameter.

The Impact of CVE-2020-10567

Exploiting this vulnerability could result in unauthorized execution of PHP code on the affected system, potentially leading to further compromise or data theft.

Technical Details of CVE-2020-10567

This section provides technical details about the vulnerability.

Vulnerability Description

The issue lies in the lack of validation for the extension in the name parameter of the save_img action in the ajax_calls.php file, enabling PHP code execution.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions affected: All versions up to 9.14.0

Exploitation Mechanism

The vulnerability can be exploited by embedding PHP code in the EXIF data of a JPEG image and using the .php extension in the name parameter of the save_img action.

Mitigation and Prevention

Protecting systems from CVE-2020-10567 requires immediate action and long-term security practices.

Immediate Steps to Take

Disable the save_img action in the config file as a quick mitigation measure.

Long-Term Security Practices

Implement input validation to prevent code injection vulnerabilities.
Regularly update and patch software to address known security issues.
Educate users on safe practices to avoid falling victim to similar attacks.

Patching and Updates

Ensure that Responsive Filemanager is updated to version 9.14.1 or later to mitigate the vulnerability.