CVE-2022-25243 : Security Advisory and Response

This article provides detailed information about CVE-2022-25243, a vulnerability found in Vault and Vault Enterprise versions 1.8.0 through 1.8.8, and 1.9.3. It allowed the PKI secrets engine to issue wildcard certificates under certain configurations, even if the policy attribute was set to disallow subdomains.

Understanding CVE-2022-25243

This section explores the impact and technical details of the CVE-2022-25243 vulnerability.

What is CVE-2022-25243?

CVE-2022-25243 is a security vulnerability in Vault and Vault Enterprise that enabled the issuance of wildcard certificates by the PKI secrets engine, disregarding the policy settings.

The Impact of CVE-2022-25243

The vulnerability could result in unauthorized wildcard certificate issuance for a specified domain, compromising the security of the PKI infrastructure.

Technical Details of CVE-2022-25243

Let's delve into the specifics of this security flaw.

Vulnerability Description

Vault and Vault Enterprise versions 1.8.0 through 1.8.8, and 1.9.3 could improperly issue wildcard certificates, even when the policy explicitly disallowed subdomains.

Affected Systems and Versions

The affected versions include Vault and Vault Enterprise 1.8.0 through 1.8.8, and 1.9.3.

Exploitation Mechanism

Unauthorized users could potentially exploit this vulnerability to obtain wildcard certificates for domains without proper authorization.

Mitigation and Prevention

Discover the steps to mitigate the risks associated with CVE-2022-25243.

Immediate Steps to Take

It is crucial to update to Vault Enterprise versions 1.8.9 and 1.9.4 to address and prevent the incorrect wildcard certificate issuance.

Long-Term Security Practices

Adopt a proactive approach towards security by regularly reviewing and adjusting the PKI policy settings to prevent unauthorized certificate issuances.

Patching and Updates

Continuously monitor security advisories and apply patches promptly to safeguard against potential vulnerabilities.