Vulnerability Details : CVE-2022-24877
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.
Vulnerability category: Directory traversalGain privilege
Products affected by CVE-2022-24877
- cpe:2.3:a:fluxcd:kustomize-controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:flux2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-24877
0.51%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-24877
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
9.9
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
3.1
|
6.0
|
GitHub, Inc. |
CWE ids for CVE-2022-24877
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
-
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize absolute path sequences such as "/abs/path" that can resolve to a location that is outside of that directory.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2022-24877
-
https://github.com/fluxcd/flux2/security/advisories/GHSA-j77r-2fxf-5jrw
Improper path handling in Kustomization files allows path traversal · Advisory · fluxcd/flux2 · GitHubVendor Advisory
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