GHSA-g82w-58jf-gcxx

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Source
https://github.com/advisories/GHSA-g82w-58jf-gcxx
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/05/GHSA-g82w-58jf-gcxx/GHSA-g82w-58jf-gcxx.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-g82w-58jf-gcxx
Aliases
Related
Published
2023-05-26T13:59:19Z
Modified
2024-08-20T20:58:31.945893Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
secrets-store-csi-driver discloses service account tokens in logs
Details

A security issue was discovered in secrets-store-csi-driver where an actor with access to the driver logs could observe service account tokens. These tokens could then potentially be exchanged with external cloud providers to access secrets stored in cloud vault solutions. Tokens are only logged when TokenRequests is configured in the CSIDriver object and the driver is set to run at log level 2 or greater via the -v flag.

This issue has been rated MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N (6.5), and assigned CVE-2023-2878

Am I vulnerable?

You may be vulnerable if TokenRequests is configured in the CSIDriver object and the driver is set to run at log level 2 or greater via the -v flag.

To check if token requests are configured, run the following command:

kubectl get csidriver secrets-store.csi.k8s.io -o jsonpath="{.spec.tokenRequests}"

To check if tokens are being logged, examine the secrets-store container log:

kubectl logs -l app=secrets-store-csi-driver -c secrets-store -f | grep --line-buffered "csi.storage.k8s.io/serviceAccount.tokens"

Affected Versions

  • secrets-store-csi-driver < 1.3.3

How do I mitigate this vulnerability?

Prior to upgrading, this vulnerability can be mitigated by running secrets-store-csi-driver at log level 0 or 1 via the -v flag.

Fixed Versions

  • secrets-store-csi-driver >= 1.3.3

To upgrade, refer to the documentation: https://secrets-store-csi-driver.sigs.k8s.io/getting-started/upgrades.html#upgrades

Detection

Examine cloud provider logs for unexpected token exchanges, as well as unexpected access to cloud vault secrets.

If you find evidence that this vulnerability has been exploited, please contact security@kubernetes.io

Database specific
{
    "nvd_published_at": "2023-06-07T15:15:09Z",
    "cwe_ids": [
        "CWE-532"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2023-05-26T13:59:19Z"
}
References

Affected packages

Go / sigs.k8s.io/secrets-store-csi-driver

Package

Name
sigs.k8s.io/secrets-store-csi-driver
View open source insights on deps.dev
Purl
pkg:golang/sigs.k8s.io/secrets-store-csi-driver

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.3.3