GSD-2023-27594
Vulnerability from gsd - Updated: 2023-12-13 01:20Details
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, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled. This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default. The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-27594",
"id": "GSD-2023-27594"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"aliases": [
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"details": "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, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled. This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default. The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.",
"id": "GSD-2023-27594",
"modified": "2023-12-13T01:20:55.867650Z",
"schema_version": "1.4.0"
}
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"value": "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, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled. This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default. The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing."
}
]
},
"impact": {
"cvss": [
{
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
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"name": "https://github.com/cilium/cilium/releases/tag/v1.11.15",
"refsource": "MISC",
"url": "https://github.com/cilium/cilium/releases/tag/v1.11.15"
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"name": "https://github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hc",
"refsource": "MISC",
"url": "https://github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hc"
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"source": {
"advisory": "GHSA-8fg8-jh2h-f2hc",
"discovery": "UNKNOWN"
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"advisories": [
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"affected_range": "\u003c1.11.15||\u003e=1.12.0 \u003c1.12.8||\u003e=1.13.0 \u003c1.13.1",
"affected_versions": "All versions before 1.11.15, all versions starting from 1.12.0 before 1.12.8, all versions starting from 1.13.0 before 1.13.1",
"cwe_ids": [
"CWE-1035",
"CWE-285",
"CWE-937"
],
"date": "2023-03-17",
"description": "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, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled. This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default. The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.",
"fixed_versions": [
"1.11.15",
"1.12.8",
"1.13.1"
],
"identifier": "CVE-2023-27594",
"identifiers": [
"GHSA-8fg8-jh2h-f2hc",
"CVE-2023-27594"
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"not_impacted": "All versions starting from 1.11.15 before 1.12.0, all versions starting from 1.12.8 before 1.13.0, all versions starting from 1.13.1",
"package_slug": "go/github.com/cilium/cilium",
"pubdate": "2023-03-17",
"solution": "Upgrade to versions 1.11.15, 1.12.8, 1.13.1 or above.",
"title": "Improper Authorization",
"urls": [
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"https://nvd.nist.gov/vuln/detail/CVE-2023-27594",
"https://github.com/cilium/cilium/releases/tag/v1.11.15",
"https://github.com/cilium/cilium/releases/tag/v1.12.8",
"https://github.com/cilium/cilium/releases/tag/v1.13.1",
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"uuid": "5123bb80-e22e-47da-a9f0-8142a7a53c79"
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"description": {
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"impact": {
"baseMetricV3": {
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"attackVector": "NETWORK",
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"baseScore": 7.3,
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"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
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"exploitabilityScore": 3.9,
"impactScore": 3.4
}
},
"lastModifiedDate": "2023-03-24T16:33Z",
"publishedDate": "2023-03-17T20:15Z"
}
}
}
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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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