CVE-2018-1277 : Vulnerability Insights and Analysis

Cloud Foundry Garden-runC prior to version 1.13.0 has a vulnerability that allows a remote authenticated user to conduct a denial-of-service attack by exceeding allocated disk quotas with a malicious Docker image.

Understanding CVE-2018-1277

Cloud Foundry Garden-runC vulnerability leading to potential denial-of-service attacks.

What is CVE-2018-1277?

Prior to version 1.13.0, Cloud Foundry Garden-runC fails to enforce disk quotas for Docker image layers, enabling authenticated users to trigger a DoS attack by uploading oversized images.

The Impact of CVE-2018-1277

The vulnerability allows attackers to disrupt Diego cells by exceeding disk space quotas, potentially causing service unavailability.

Technical Details of CVE-2018-1277

Details on the vulnerability affecting Cloud Foundry Garden-runC.

Vulnerability Description

Cloud Foundry Garden-runC versions before 1.13.0 lack proper enforcement of disk quotas for Docker images, enabling DoS attacks.

Affected Systems and Versions

Product: Garden-runC
Vendor: Cloud Foundry
Versions Affected: 1.13.0

Exploitation Mechanism

Attackers with authenticated access can upload Docker images that surpass allocated disk quotas, leading to DoS against Diego cells.

Mitigation and Prevention

Measures to address and prevent the CVE-2018-1277 vulnerability.

Immediate Steps to Take

Upgrade Cloud Foundry Garden-runC to version 1.13.0 or later to mitigate the vulnerability.
Monitor disk usage and enforce strict quotas to prevent oversized image uploads.

Long-Term Security Practices

Regularly update and patch Cloud Foundry components to address security flaws.
Implement network segmentation and access controls to limit exposure to potential attackers.

Patching and Updates

Apply security patches promptly to ensure protection against known vulnerabilities in Cloud Foundry Garden-runC.