CVE-2018-1267 : Vulnerability Insights and Analysis

The Cloud Foundry Silk CNI plugin, versions before 0.2.0, has a vulnerability related to improper access control, allowing unauthorized access between applications.

Understanding CVE-2018-1267

What is CVE-2018-1267?

The vulnerability in the Cloud Foundry Silk CNI plugin allows applications to bypass routing policies, potentially leading to unauthorized access within the network.

The Impact of CVE-2018-1267

The vulnerability could result in unauthorized access between applications on the network, compromising data security and integrity.

Technical Details of CVE-2018-1267

Vulnerability Description

The Cloud Foundry Silk CNI plugin, versions prior to 0.2.0, allows applications to access other applications on the network without adhering to routing policies.

Affected Systems and Versions

Product: Cloud Foundry Silk CNI plugin
Vendor: N/A
Versions affected: < 0.2.0

Exploitation Mechanism

The vulnerability occurs when an application security group (ASG) overlaps with the Silk overlay network, enabling unrestricted access between applications.

Mitigation and Prevention

Immediate Steps to Take

Update the Cloud Foundry Silk CNI plugin to version 0.2.0 or newer.
Review and adjust application security group configurations to avoid overlaps with the Silk overlay network.

Long-Term Security Practices

Regularly monitor network traffic for any unauthorized access patterns.
Implement strict access control policies to prevent unauthorized communication between applications.

Patching and Updates

Apply patches and updates provided by Cloud Foundry to address the vulnerability and enhance network security.