CVE-2022-35930 : What You Need to Know

A detailed overview of CVE-2022-35930 highlighting the impact, technical details, and mitigation steps.

Understanding CVE-2022-35930

CVE-2022-35930 involves the ability to bypass attestation verification in sigstore PolicyController.

What is CVE-2022-35930?

PolicyController, a utility used to enforce supply chain policy in Kubernetes clusters, has a vulnerability in versions prior to 0.2.1. This vulnerability allows the system to admit an attestation incorrectly.

The Impact of CVE-2022-35930

The impact is rated as HIGH, with a CVSS score of 7.1. The vulnerability affects confidentiality, integrity, and availability of the system, with a requirement for user interaction.

Technical Details of CVE-2022-35930

A closer look at the vulnerability in the sigstore PolicyController.

Vulnerability Description

The CVE-2022-35930 vulnerability allows a false positive admission in PolicyController when specific conditions are met, as explained in the vendor description.

Affected Systems and Versions

The affected product is "policy-controller" by sigstore, specifically versions earlier than 0.2.1.

Exploitation Mechanism

The vulnerability arises from improper verification of cryptographic signatures, falling under CWE-347.

Mitigation and Prevention

Effective strategies to mitigate and prevent the exploitation of CVE-2022-35930.

Immediate Steps to Take

Users are strongly advised to upgrade to version 0.2.1 to address this issue. No workarounds are available for users who are unable to upgrade.

Long-Term Security Practices

Implementing secure coding practices, regular security assessments, and staying updated on patches and advisories are crucial for long-term security.

Patching and Updates

Regularly monitor for security patches and updates from sigstore to ensure the system is protected against known vulnerabilities.