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CVE-2024-28249— Cilium has possible unencrypted traffic between nodes when using IPsec and L7 policies

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存在安全漏洞，该漏洞源于使用IPsec和L7策略时节点之间可能存在未加密流量。

CVSS 6.1 · Medium EPSS 0.27% · P19
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I. Basic Information for CVE-2024-28249

Vulnerability Information
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Vulnerability Title
Cilium has possible unencrypted traffic between nodes when using IPsec and L7 policies
Source: CVE Program / CVE List V5
Vulnerability Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.13.13, 1.14.8, and 1.15.2, in Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, IPsec-eligible traffic between a node's Envoy proxy and pods on other nodes is sent unencrypted and IPsec-eligible traffic between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.15.2, 1.14.8, and 1.13.13. There is no known workaround for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据加密缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Cilium 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cilium是一个开源软件。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存在安全漏洞，该漏洞源于使用IPsec和L7策略时节点之间可能存在未加密流量。
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 < 1.13.13 -

II. Public POCs for CVE-2024-28249

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III. Intelligence Information for CVE-2024-28249

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Vendor Advisories for CVE-2024-28249 (1)

Other References for CVE-2024-28249 (3)

Same Patch Batch · cilium · 2024-03-18 · 3 CVEs total

CVE-2024-28248 7.2 HIGH Cilium intermittent HTTP policy bypass
CVE-2024-28250 6.1 MEDIUM Cilium has possible unencrypted traffic between nodes when using WireGuard and L7 policies

IV. Related Vulnerabilities

Same product: cilium
Same vendor: cilium
Same weakness: CWE-311

V. Comments for CVE-2024-28249

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