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CVE-2024-31216— source-controller leaks theAzure Storage SAS token into logs on connection errors

Quick assessment

Affected
fluxcd source-controller
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Source controller是Flux项目的一个组件。 source-controller 1.2.5之前版本存在安全漏洞。攻击者利用该漏洞可以获取对 Azure Blob 存储的访问权限。

CVSS 5.1 · Medium EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2024-31216

Vulnerability Information
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Vulnerability Title
source-controller leaks theAzure Storage SAS token into logs on connection errors
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Source controller 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Source controller是Flux项目的一个组件。 source-controller 1.2.5之前版本存在安全漏洞。攻击者利用该漏洞可以获取对 Azure Blob 存储的访问权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
fluxcd source-controller < 1.2.5 -

II. Public POCs for CVE-2024-31216

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III. Intelligence Information for CVE-2024-31216

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Patches & Fixes for CVE-2024-31216 (2)

Vendor Advisories for CVE-2024-31216 (1)

IV. Related Vulnerabilities

Same product: source-controller
Same vendor: fluxcd
Same weakness: CWE-532