VulnerabilityModified

CVE-2022-24877

Path Traversal in the kustomize-controller via a malicious `kustomization.yaml` allows an attacker to expose sensitive data from the controller’s pod filesystem and possibly privilege escalation in multi-tenancy deployments.

HIGH 8.8EPSS 1.17%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Flux is an open and extensible continuous delivery solution for Kubernetes. Path Traversal in the kustomize-controller via a malicious `kustomization.yaml` allows an attacker to expose sensitive data from the controller’s pod filesystem and possibly privilege escalation in multi-tenancy deployments. Workarounds include automated tooling in the user's CI/CD pipeline to validate `kustomization.yaml` files conform with specific policies. This vulnerability is fixed in kustomize-controller v0.24.0 and included in flux2 v0.29.0.

CVSS 3.1: 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.17% probability · 66th percentile
CISA KEV: Not listed
Weakness: CWE-22, CWE-36
Affected: fluxcd/flux2 · fluxcd/kustomize-controller
Source: security-advisories@github.com

References

https://github.com/fluxcd/flux2/security/advisories/GHSA-j77r-2fxf-5jrwVendor Advisory
https://github.com/fluxcd/flux2/security/advisories/GHSA-j77r-2fxf-5jrwVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.