CVE-2023-28114
What it is
`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.
At a glance
- Exploitability
- Can be exploited from the same network segment with an admin-level account. Limited direct impact.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 4.8 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-280
- Record status
- Modified
Affected
- Cilium cilium-cli < 0.13.2
Attack profile CVSS 3.1 · 4.8
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Raw vector
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-28114.md and follow it. Check whether this project is affected by CVE-2023-28114. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/cilium/cilium-cli/commit/fb1427025764e1eebc4a7710d902c4f22cae2610
- https://github.com/cilium/cilium-cli/releases/tag/v0.13.2
- https://github.com/cilium/cilium-cli/security/advisories/GHSA-6f27-3p6c-p5jc
- https://github.com/cilium/cilium-cli/commit/fb1427025764e1eebc4a7710d902c4f22cae2610
- https://github.com/cilium/cilium-cli/releases/tag/v0.13.2
- https://github.com/cilium/cilium-cli/security/advisories/GHSA-6f27-3p6c-p5jc
References
- https://artifacthub.io/packages/helm/cilium/cilium
- https://github.com/cilium/cilium-cli/commit/fb1427025764e1eebc4a7710d902c4f22cae2610
- https://github.com/cilium/cilium-cli/releases/tag/v0.13.2
- https://github.com/cilium/cilium-cli/security/advisories/GHSA-6f27-3p6c-p5jc
- https://artifacthub.io/packages/helm/cilium/cilium
- https://github.com/cilium/cilium-cli/commit/fb1427025764e1eebc4a7710d902c4f22cae2610
- https://github.com/cilium/cilium-cli/releases/tag/v0.13.2
- https://github.com/cilium/cilium-cli/security/advisories/GHSA-6f27-3p6c-p5jc