source-controller leaks Azure Storage SAS token into logs

中 5.1CVE-2024-31216 · GHSA-v554-xwgw-hc3w · GO-2024-2859 · 15/05/2024 公開 · 17/06/2026 更新

要点

CVE-2024-31216 は github.com/fluxcd/source-controller に影響する深刻度「中」 (CVSS 5.1) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.21%（全脆弱性の 11.5% より高い）。
対処：1.2.5 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
github.com/fluxcd/source-controller Go	`< 1.2.5`	`1.2.5`

概要

Impact

When source-controller is 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.

Patches

This vulnerability was fixed in source-controller v1.2.5.

Workarounds

There is no workaround for this vulnerability except for using a different auth mechanism such as Azure Workload Identity.

Credits

This issue was reported and fixed by Jagpreet Singh Tamber (@jagpreetstamber) from the Azure Arc team.

References

https://github.com/fluxcd/source-controller/pull/1430

For more information

If you have any questions or comments about this advisory:

Open an issue in the source-controller repository.
Contact us at the CNCF Flux Channel.

NVD の説明

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.