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CVE-2023-23947

9.1 · CRITICAL

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes.

Published Feb 16, 2023CWE-863EPSS 0.67%

Overview

CVE-2023-23947 is a critical-severity vulnerability. It was published on February 16, 2023 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. All Argo CD versions starting with 2.3.0-rc1 and prior to 2.3.17, 2.4.23 2.5.11, and 2.6.2 are vulnerable to an improper authorization bug which allows users who have the ability to update at least one cluster secret to update any cluster secret. The attacker could use this access to escalate privileges (potentially controlling Kubernetes resources) or to break Argo CD functionality (by preventing connections to external clusters). A patch for this vulnerability has been released in Argo CD versions 2.6.2, 2.5.11, 2.4.23, and 2.3.17. Two workarounds are available. Either modify the RBAC configuration to completely revoke all `clusters, update` access, or use the `destinations` and `clusterResourceWhitelist` fields to apply similar restrictions as the `namespaces` and `clusterResources` fields.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/argoproj/argo-cd/commit/fbb0b99b1ac3361b253052bd30259fa43a520945GitHubgithub.com/argoproj/argo-cd/security/advisories/GHSA-3jfq-742w-xg8jGitHubgithub.com/argoproj/argo-cd/commit/fbb0b99b1ac3361b253052bd30259fa43a520945GitHubgithub.com/argoproj/argo-cd/security/advisories/GHSA-3jfq-742w-xg8j

How CyberStrike helps

Frequently asked questions

What is CVE-2023-23947?

CVE-2023-23947 is a critical-severity vulnerability. It was published on February 16, 2023 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2023-23947?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-23947?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-23947?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-23947 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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