CVE-2018-1221 Explained : Impact and Mitigation

The Cloud Foundry Gorouter has a vulnerability in versions prior to 1.14.0 in cf-deployment and 0.172.0 in routing-release, affecting WebSocket requests made to AWS Application Load Balancers and certain other HTTP-aware Load Balancers. An unauthorized user with developer privileges could exploit this vulnerability to access sensitive data or disrupt the service.

Understanding CVE-2018-1221

This CVE involves a WebSocket handling vulnerability in The Cloud Foundry Gorouter.

What is CVE-2018-1221?

In versions before 1.14.0 in cf-deployment and 0.172.0 in routing-release, The Cloud Foundry Gorouter mishandles WebSocket requests for AWS Application Load Balancers and other HTTP-aware Load Balancers, potentially leading to data theft or denial of service attacks.

The Impact of CVE-2018-1221

The vulnerability allows unauthorized users with developer privileges to exploit WebSocket requests, compromising data security and service availability.

Technical Details of CVE-2018-1221

The technical aspects of the vulnerability.

Vulnerability Description

The Cloud Foundry Gorouter mishandles WebSocket requests for certain Load Balancers.

Affected Systems and Versions

The Cloud Foundry Gorouter versions prior to 1.14.0 in cf-deployment
The Cloud Foundry Gorouter versions prior to 0.172.0 in routing-release

Exploitation Mechanism

Unauthorized users with developer privileges can exploit WebSocket requests to AWS ALBs and other HTTP-aware Load Balancers.

Mitigation and Prevention

Steps to address and prevent the vulnerability.

Immediate Steps to Take

Update The Cloud Foundry Gorouter to versions 1.14.0 for cf-deployment and 0.172.0 for routing-release.
Monitor and restrict WebSocket requests to prevent unauthorized access.

Long-Term Security Practices

Regularly review and update security configurations.
Conduct security training for developers on secure coding practices.

Patching and Updates

Apply patches and updates promptly to ensure system security.