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CVE-2022-24817

Common vulnerabilities & exposures (CVE)

CVE databaseCVE database blogpostRelease & EoL database
 
Published at: - 06-05-2022 02:15
Last modified: - 16-05-2022 09:07
Total changes: - 2

Description

Flux2 is an open and extensible continuous delivery solution for Kubernetes. Flux2 versions between 0.1.0 and 0.29.0, helm-controller 0.1.0 to v0.19.0, and kustomize-controller 0.1.0 to v0.23.0 are vulnerable to Code Injection via malicious Kubeconfig. In multi-tenancy deployments this can also lead to privilege escalation if the controller's service account has elevated permissions. Workarounds include disabling functionality via Validating Admission webhooks by restricting users from setting the `spec.kubeConfig` field in Flux `Kustomization` and `HelmRelease` objects. Additional mitigations include applying restrictive AppArmor and SELinux profiles on the controller’s pod to limit what binaries can be executed. This vulnerability is fixed in kustomize-controller v0.23.0 and helm-controller v0.19.0, both included in flux2 v0.29.0

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Low
Attack complexity
Network
Attack vector
High
Availability
High
Confidentiality
High
Integrity
Low
Privileges required
Changed
Scope
None
User interaction
9.9
Base score
3.1
6.0
Exploitability score
Impact score
 

Verification logic

OR
vendor=fluxcd AND product=kustomize-controller AND versionStartIncluding=0.1.0 AND versionEndExcluding=0.23.0
vendor=fluxcd AND product=helm-controller AND versionStartIncluding=0.2.0 AND versionEndExcluding=0.19.0
vendor=fluxcd AND product=flux2 AND versionStartIncluding=0.1.0 AND versionEndExcluding=0.29.0
 

Reference

 


Keywords

NVD

 

CVE-2022-24817

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

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