High severity · published May 6, 2022
CVE-2022-24877
Flux is an open and extensible continuous delivery solution for Kubernetes
8.8
CVSS
1.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FL
Flux2 · Fluxcd
before 0.29.0 · source: NVD
KU
Kustomize-controller · Fluxcd
before 0.24.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-24877
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-24877
Vendor Advisory
https://github.com/fluxcd/flux2/security/advisories/GHSA-j77r-2fxf-5jrw
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