CVE-2018-1193 : Security Advisory and Response

CVE-2018-1193 pertains to a vulnerability in Cloud Foundry Router versions prior to 0.175.0 that could allow malicious users to bypass secure connection requirements.

Understanding CVE-2018-1193

Before version 0.175.0, the Cloud Foundry routing-release lacks proper sanitization for X-Forwarded-Proto headers, enabling potential security bypasses.

What is CVE-2018-1193?

This CVE highlights a flaw in Cloud Foundry Router versions prior to 0.175.0, where inadequate sanitization of user-provided X-Forwarded-Proto headers poses a security risk.

The Impact of CVE-2018-1193

The vulnerability could permit a malicious user to circumvent an application's secure connection requirement by manipulating the X-Forwarded-Proto header in a request.

Technical Details of CVE-2018-1193

Cloud Foundry Router's vulnerability to improper X-Forwarded-Proto header handling is detailed below.

Vulnerability Description

The issue lies in the lack of sanitization for user-provided X-Forwarded-Proto headers, potentially enabling security bypasses.

Affected Systems and Versions

Product: Cloud Foundry Router
Vendor: Cloud Foundry
Versions Affected: Prior to 0.175.0

Exploitation Mechanism

Malicious users can exploit this vulnerability by setting the X-Forwarded-Proto header in a request to evade secure connection requirements.

Mitigation and Prevention

Protecting systems from CVE-2018-1193 involves immediate actions and long-term security practices.

Immediate Steps to Take

Update Cloud Foundry Router to version 0.175.0 or newer to mitigate the vulnerability.
Monitor and restrict user input to prevent malicious header manipulation.

Long-Term Security Practices

Implement strict input validation mechanisms to sanitize user-provided data effectively.
Regularly review and update security configurations to address emerging threats.
Educate users and administrators on secure coding practices and potential risks.

Patching and Updates

Ensure timely installation of security patches and updates to address known vulnerabilities and enhance system security.