Vulnerability · Published May 15, 2024 · Assigned by GitHub_M
CVE-2024-31216source-controller leaks theAzure Storage SAS token into logs on connection errors
Medium 5.1
In plain English
A medium-severity sensitive data in logs in source-controller from fluxcd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
The source-controller is a Kubernetes operator, specialised in artifacts acquisition from external sources such as Git, OCI, Helm repositories and S3-compatible buckets. The source-controller implements the source.toolkit.fluxcd.io API and is a core component of the GitOps toolkit. Prior to version 1.2.5, when source-controller was configured to use an Azure SAS token when connecting to Azure Blob Storage, the token was logged along with the Azure URL when the controller encountered a connection error. An attacker with access to the source-controller logs could use the token to gain access to the Azure Blob Storage until the token expires. This vulnerability was fixed in source-controller v1.2.5. There is no workaround for this vulnerability except for using a different auth mechanism such as Azure Workload Identity.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/fluxcd/source-controller | 1.2.5 | GHSA-v554-xwgw-hc3w |
| Go | github.com/fluxcd/source-controller | 1.2.5 | GO-2024-2859 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| fluxcd | source-controller | < 1.2.5 |
Weakness: CWE-532 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N