CVE-2022-31098 : Security Advisory and Response

Weave GitOps leaked cluster credentials into logs on connection errors.

Understanding CVE-2022-31098

A vulnerability in the logging of Weave GitOps could allow an authenticated remote attacker to view sensitive cluster configurations.

What is CVE-2022-31098?

Weave GitOps, a developer platform, inadvertently leaked cluster credentials into logs on connection errors. Attackers could access service account tokens and manage Kubernetes clusters.

The Impact of CVE-2022-31098

The vulnerability posed a critical threat with a CVSS base score of 9. Attackers could exploit it to compromise confidentiality, integrity, and availability of Kubernetes clusters.

Technical Details of CVE-2022-31098

The vulnerability in Weave GitOps core version < 0.8.1-rc.6 allowed attackers to access sensitive cluster configurations, including service account tokens.

Vulnerability Description

Weave GitOps logged sensitive cluster data in plaintext, exposing service account tokens on connection errors. Unauthorized users could access this data, compromising cluster security.

Affected Systems and Versions

Users of Weave GitOps version < 0.8.1-rc.6 were impacted by this vulnerability.

Exploitation Mechanism

Attackers could exploit this vulnerability by accessing pod logs or external log storage to obtain and misuse cluster configurations.

Mitigation and Prevention

Immediate action and long-term security practices are crucial to address CVE-2022-31098.

Immediate Steps to Take

It's essential to upgrade to Weave GitOps core version v0.8.1-rc.6 or newer to mitigate this vulnerability. No known workarounds are available.

Long-Term Security Practices

Regularly update Weave GitOps to the latest secure versions, conduct security audits, and monitor for unauthorized access.

Patching and Updates

Stay informed about security advisories and promptly apply patches released by Weaveworks to address critical vulnerabilities.