Vulnerability Details : CVE-2023-28114
`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.
Products affected by CVE-2023-28114
- cpe:2.3:a:cilium:cilium-cli:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-28114
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 12 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-28114
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.1
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N |
2.3
|
1.4
|
NIST | |
4.8
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N |
1.7
|
2.7
|
GitHub, Inc. |
CWE ids for CVE-2023-28114
-
The product does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the product in an invalid state.Assigned by: security-advisories@github.com (Primary)
-
The product does not handle or incorrectly handles an exceptional condition.Assigned by: security-advisories@github.com (Primary)
References for CVE-2023-28114
-
https://github.com/cilium/cilium-cli/security/advisories/GHSA-6f27-3p6c-p5jc
`cilium-cli` disables etcd authorization for clustermesh clusters · Advisory · cilium/cilium-cli · GitHubVendor Advisory
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https://github.com/cilium/cilium-cli/commit/fb1427025764e1eebc4a7710d902c4f22cae2610
clustermesh: correctly mount the etcd data dir in the init container · cilium/cilium-cli@fb14270 · GitHubPatch
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https://artifacthub.io/packages/helm/cilium/cilium
Product
-
https://github.com/cilium/cilium-cli/releases/tag/v0.13.2
Release Release v0.13.2 · cilium/cilium-cli · GitHubRelease Notes
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