FKIE_CVE-2023-28114
Vulnerability from fkie_nvd - Published: 2023-03-22 19:15 - Updated: 2024-11-21 07:54
Severity ?
4.8 (Medium) - CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
4.1 (Medium) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
4.1 (Medium) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
Summary
`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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cilium | cilium-cli | * |
{
"configurations": [
{
"nodes": [
{
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"criteria": "cpe:2.3:a:cilium:cilium-cli:*:*:*:*:*:*:*:*",
"matchCriteriaId": "745EA41C-AFCC-43BA-863C-D419E59E0A91",
"versionEndExcluding": "0.13.2",
"vulnerable": true
}
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "`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.\n\nDue 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.\n\nThis issue is patched in `cilium-cli` 0.13.2. As a workaround, one may use Cilium\u0027s Helm charts to create their cluster."
}
],
"id": "CVE-2023-28114",
"lastModified": "2024-11-21T07:54:26.050",
"metrics": {
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{
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"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
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"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N",
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"published": "2023-03-22T19:15:12.020",
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"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
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"value": "CWE-280"
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{
"lang": "en",
"value": "CWE-755"
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"source": "security-advisories@github.com",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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