CVE-2020-35239 : Exploit Details and Defense Strategies

CakePHP versions 4.0.x through 4.1.3 are vulnerable due to a flaw in the CsrfProtectionMiddleware component that allows bypassing CSRF checks by manipulating the HTTP request method.

Understanding CVE-2020-35239

This CVE identifies a security vulnerability in CakePHP versions 4.0.x through 4.1.3.

What is CVE-2020-35239?

The vulnerability in CakePHP versions 4.0.x through 4.1.3 allows attackers to bypass CSRF checks by altering the HTTP request method using an arbitrary string.

The Impact of CVE-2020-35239

This vulnerability could lead to unauthorized actions being performed on the application, potentially compromising its integrity and security.

Technical Details of CVE-2020-35239

CakePHP versions 4.0.x through 4.1.3 are affected by this vulnerability.

Vulnerability Description

The CsrfProtectionMiddleware component in CakePHP allows method override parameters to bypass CSRF checks by changing the HTTP request method to an arbitrary string not verified by CakePHP.

Affected Systems and Versions

CakePHP versions 4.0.x through 4.1.3

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the HTTP request method to bypass CSRF protection.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Update CakePHP to a patched version that addresses this vulnerability.
Monitor and restrict HTTP request methods to prevent unauthorized changes.

Long-Term Security Practices

Regularly update and patch CakePHP to mitigate known vulnerabilities.
Implement strict input validation and security controls to prevent unauthorized access.

Patching and Updates

Apply the latest security patches and updates provided by CakePHP to fix this vulnerability.