CVE-2018-19458 : Security Advisory and Response

PHP Proxy version 3.0.3 contains a security vulnerability that allows unauthorized users to access server files without authentication. This flaw is distinct from CVE-2018-19246.

Understanding CVE-2018-19458

In version 3.0.3 of PHP Proxy, a security flaw enables users to read server files without proper authentication through the index.php?q=file:/// LFI URI.

What is CVE-2018-19458?

The vulnerability in PHP Proxy version 3.0.3 allows any user to access server files without requiring authentication, posing a significant security risk.

The Impact of CVE-2018-19458

This vulnerability can lead to unauthorized access to sensitive server files, potentially exposing confidential information to malicious actors.

Technical Details of CVE-2018-19458

PHP Proxy version 3.0.3 vulnerability details:

Vulnerability Description

The flaw in PHP Proxy version 3.0.3 permits users to view server files without authentication using the index.php?q=file:/// LFI URI.

Affected Systems and Versions

Product: PHP Proxy
Vendor: N/A
Version: 3.0.3

Exploitation Mechanism

The vulnerability can be exploited by crafting a specific URI (index.php?q=file=/) to access server files without authentication.

Mitigation and Prevention

Steps to address CVE-2018-19458:

Immediate Steps to Take

Disable PHP Proxy version 3.0.3 if possible.
Implement access controls and authentication mechanisms to restrict unauthorized file access.

Long-Term Security Practices

Regularly update PHP Proxy to the latest secure version.
Conduct security audits to identify and address vulnerabilities proactively.

Patching and Updates

Apply patches or updates provided by the PHP Proxy maintainers to fix the security flaw.