CVE-2019-3865 : What You Need to Know

A security flaw has been discovered in version 2 of Quay, specifically in its super user feature, allowing malicious actors to exploit a stored cross-site scripting vulnerability.

Understanding CVE-2019-3865

This CVE pertains to a vulnerability in Quay version 2 that enables attackers to execute malicious scripts through the service key name field.

What is CVE-2019-3865?

The vulnerability in Quay version 2 allows for stored cross-site scripting, enabling attackers to inject and execute scripts via the service key name field.

The Impact of CVE-2019-3865

The impact of this vulnerability is rated as MEDIUM severity with a CVSS base score of 4.7. It requires user interaction and has a high attack complexity.

Technical Details of CVE-2019-3865

Vulnerability Description

The flaw in Quay version 2 allows for stored cross-site scripting through the service key name field, enabling malicious script execution.

Affected Systems and Versions

Product: Quay
Vendor: [UNKNOWN]
Versions Affected: Quay 2

Exploitation Mechanism

Attackers can exploit the vulnerability by injecting scripts into the name field of a service key, which are then executed when administrative users attempt to modify the name.

Mitigation and Prevention

Immediate Steps to Take

Update Quay to a patched version that addresses the vulnerability.
Monitor and restrict access to administrative features to prevent unauthorized script execution.

Long-Term Security Practices

Regularly audit and review code for potential security vulnerabilities.
Educate users on safe practices to prevent cross-site scripting attacks.

Patching and Updates

Ensure timely installation of security patches and updates for Quay to mitigate the risk of exploitation.