CVE-2023-28114

Published Mar 22, 2023

Last updated a year ago

Overview

Description: `cilium-cli` is the command line interface to install, manage, and troubleshoot Kubernetes clusters running Cilium. Prior to version 0.13.2,`cilium-cli`, when used to configure cluster mesh functionality, can remove the enforcement of user permissions on the `etcd` store used to mirror local cluster information to remote clusters. Users who have set up cluster meshes using the Cilium Helm chart are not affected by this issue. Due to an incorrect mount point specification, the settings specified by the `initContainer` that configures `etcd` users and their permissions are overwritten when using `cilium-cli` to configure a cluster mesh. An attacker who has already gained access to a valid key and certificate for an `etcd` cluster compromised in this manner could then modify state in that `etcd` cluster. This issue is patched in `cilium-cli` 0.13.2. As a workaround, one may use Cilium's Helm charts to create their cluster.
Source: security-advisories@github.com
NVD status: Modified

Hype score: Not currently trending

Risk scores

CVSS 3.1

Type: Primary
Base score: 4.1
Impact score: 1.4
Exploitability score: 2.3
Vector string: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
Severity: MEDIUM

Weaknesses

security-advisories@github.com: CWE-280

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:cilium:cilium-cli:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "745EA41C-AFCC-43BA-863C-D419E59E0A91",
            "versionEndExcluding": "0.13.2"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

Overview

Social media

Risk scores

CVSS 3.1

Weaknesses

Configurations

References