CVE-2023-23947

CRITICAL

Argo CD users with any cluster secret update access may update out-of-bounds cluster secrets

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2023-23947 has a selected CVSS score of 9.1 (critical).

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactTotal

CISA Coordinator · SSVC 2.0.3 · Evaluated Mar 10, 2025 · Source: CVE List

Affected products and versions

2
ProductSourceVersion range

argo-cd

Browse argoproj / argo-cd
CVE List>= 2.3.0-rc1, < 2.3.17affected
>= 2.4.0, < 2.4.23affected
>= 2.5.0, < 2.5.11affected
>= 2.6.0, < 2.6.2affected

github.com/argoproj/argo-cd

Browse Go / github.com/argoproj/argo-cd
GitHub Advisory2.3.0 to < 2.3.17 · Fixed in 2.3.17affected
2.4.0 to < 2.4.23 · Fixed in 2.4.23affected
2.5.0 to < 2.5.11 · Fixed in 2.5.11affected
2.6.0 to < 2.6.2 · Fixed in 2.6.2affected

References

4