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CVE-2024-42486— Cilium vulnerable to information leakage via incorrect ReferenceGrant update logic in Gateway API

Quick assessment

Affected
cilium cilium
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.

Cilium是Cilium开源的一个开源软件。用于提供和透明地保护应用程序工作负载（如应用程序容器或进程）之间的网络连接和负载平衡。 Cilium 1.15.0版本至1.15.8之前版本、1.16.0版本存在安全漏洞，该漏洞源于ReferenceGrant更改未正确传播到GatewayAPI控制器中，可能导致Gateway资源能够访问机密的时间超过预期。

CVSS 5.4 · Medium EPSS 0.57% · P46

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2024-42486

Vulnerability Information
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Vulnerability Title
Cilium vulnerable to information leakage via incorrect ReferenceGrant update logic in Gateway API
Source: CVE Program / CVE List V5
Vulnerability Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In versions on the 1.15.x branch prior to 1.15.8 and the 1.16.x branch prior to 1.16.1, ReferenceGrant changes are not correctly propagated in Cilium's GatewayAPI controller, which could lead to Gateway resources being able to access secrets for longer than intended, or to Routes having the ability to forward traffic to backends in other namespaces for longer than intended. This issue has been patched in Cilium v1.15.8 and v1.16.1. As a workaround, any modification of a related Gateway/HTTPRoute/GRPCRoute/TCPRoute CRD (for example, adding any label to any of these resources) will trigger a reconciliation of ReferenceGrants on an affected cluster.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Cilium 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cilium是Cilium开源的一个开源软件。用于提供和透明地保护应用程序工作负载（如应用程序容器或进程）之间的网络连接和负载平衡。 Cilium 1.15.0版本至1.15.8之前版本、1.16.0版本存在安全漏洞，该漏洞源于ReferenceGrant更改未正确传播到GatewayAPI控制器中，可能导致Gateway资源能够访问机密的时间超过预期。
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
cilium cilium = 1.16.0 -

II. Public POCs for CVE-2024-42486

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III. Intelligence Information for CVE-2024-42486

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Patches & Fixes for CVE-2024-42486 (1)

Vendor Advisories for CVE-2024-42486 (1)

IV. Related Vulnerabilities

Same product: cilium
Same vendor: cilium
Same weakness: CWE-200

V. Comments for CVE-2024-42486

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