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SCA: security update for github.com/cilium/cilium (GHSA-4hc4-pgfx-3mrx)

medium Tenable Cloud Security Plugin ID 410209

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to
 versions 1.11.15, 1.12.8, and 1.13.1, an attacker with access to a Cilium agent pod can write to
 `/opt/cni/bin` due to a `hostPath` mount of that directory in the agent pod. By replacing the CNI binary
 with their own malicious binary and waiting for the creation of a new pod on the node, the attacker can
 gain access to the underlying node. The issue has been fixed and the fix is available on versions 1.11.15,
 1.12.8, and 1.13.1. Some workarounds are available. Kubernetes RBAC should be used to deny users and
 service accounts `exec` access to Cilium agent pods. In cases where a user requires `exec` access to
 Cilium agent pods, but should not have access to the underlying node, no workaround is possible.
 (CVE-2023-27593)

See Also

https://github.com/advisories/GHSA-4hc4-pgfx-3mrx

Plugin Details

Severity: Medium

ID: 410209

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.51

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2023-27593

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/17/2023

Vulnerability Publication Date: 3/17/2023

Reference Information

CVE: CVE-2023-27593

cwe: CWE-276