Overview
- 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.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.8
- Impact score
- 5.9
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 6.5
- Impact score
- 6.4
- Exploitability score
- 8
- Vector string
- AV:N/AC:L/Au:S/C:P/I:P/A:P
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:fluxcd:flux2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "45B1C066-F71F-48F7-9119-200CAE4E42B8",
"versionEndExcluding": "0.29.0"
},
{
"criteria": "cpe:2.3:a:fluxcd:kustomize-controller:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E813B615-DAA8-47E8-A35C-98A5D752663D",
"versionEndExcluding": "0.24.0"
}
],
"operator": "OR"
}
]
}
]