CVE-2023-40029

Description

A flaw was found in the ArgoCD package, used by Red Hat GitOps, that allows cluster secrets to be managed declaratively using the kubectl apply functionality, resulting in the full secret body being stored in kubectl.kubernetes.io/last-applied-configuration annotation. Since ArgoCD has included the ability to manage cluster labels and annotations via its API, an attacker can retrieve sensitive authentication information by leveraging this capability, imposing a high impact on data confidentiality and integrity for the targeted ArgoCD cluster. To perform a successful attack, the malicious actor should have clusters, get RBAC access granted to its user.

Mitigation

Update/deploy the cluster secret with the`server-side-apply` flag, which does not use or rely on the `kubectl.kubernetes.io/last-applied-configuration` <http://kubectl.kubernetes.io/last-applied-configuration>; annotation.

Note: Annotation for existing secrets will require manual removal.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score9.99.6N/A
Attack VectorNetworkNetworkN/A
Attack ComplexityLowLowN/A
Privileges RequiredLowLowN/A
User InteractionNoneNoneN/A
ScopeChangedChangedN/A
ConfidentialityHighHighN/A
Integrity ImpactHighHighN/A
Availability ImpactLowNoneN/A

Vector

Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

NVD: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

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