CVE-2019-16676 Explained : Impact and Mitigation

Plataformatec Simple Form has a vulnerability in the file_method of lib/simple_form/form_builder.rb, allowing unauthorized access control due to user-provided strings being directly invoked as method calls.

Understanding CVE-2019-16676

This CVE identifies an incorrect access control issue in Plataformatec Simple Form.

What is CVE-2019-16676?

The vulnerability in the file_method of lib/simple_form/form_builder.rb allows attackers to exploit access control by using user-supplied strings as method calls.

The Impact of CVE-2019-16676

The flaw could lead to unauthorized access and potential security breaches in systems using Plataformatec Simple Form.

Technical Details of CVE-2019-16676

Plataformatec Simple Form's vulnerability is detailed below:

Vulnerability Description

The flaw arises from the direct invocation of user-provided strings as method calls in the file_method of lib/simple_form/form_builder.rb.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating user-supplied strings to execute unauthorized method calls.

Mitigation and Prevention

To address CVE-2019-16676, consider the following steps:

Immediate Steps to Take

Update Plataformatec Simple Form to the latest version.
Implement proper input validation to prevent malicious input.

Long-Term Security Practices

Regularly review and update access control mechanisms.
Conduct security audits to identify and address similar vulnerabilities.

Patching and Updates

Apply patches and security updates promptly to mitigate the risk of unauthorized access.