CVE-2021-25740
Vulnerability from cvelistv5
Published
2021-09-20 17:05
Modified
2024-09-16 19:30
Severity ?
EPSS score ?
Summary
A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.
References
▼ | URL | Tags | |
---|---|---|---|
jordan@liggitt.net | https://github.com/kubernetes/kubernetes/issues/103675 | Mitigation, Third Party Advisory | |
jordan@liggitt.net | https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE | Mailing List, Mitigation, Third Party Advisory | |
jordan@liggitt.net | https://security.netapp.com/advisory/ntap-20211014-0001/ | Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://github.com/kubernetes/kubernetes/issues/103675 | Mitigation, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE | Mailing List, Mitigation, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://security.netapp.com/advisory/ntap-20211014-0001/ | Third Party Advisory |
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
Kubernetes | Kubernetes |
Version: unspecified < Version: unspecified < Version: unspecified < |
{ containers: { adp: [ { providerMetadata: { dateUpdated: "2024-08-03T20:11:27.960Z", orgId: "af854a3a-2127-422b-91ae-364da2661108", shortName: "CVE", }, references: [ { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE", }, { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://github.com/kubernetes/kubernetes/issues/103675", }, { tags: [ "x_refsource_CONFIRM", "x_transferred", ], url: "https://security.netapp.com/advisory/ntap-20211014-0001/", }, ], title: "CVE Program Container", }, ], cna: { affected: [ { product: "Kubernetes", vendor: "Kubernetes", versions: [ { lessThanOrEqual: "1.20.11", status: "affected", version: "unspecified", versionType: "custom", }, { lessThan: "unspecified", status: "unknown", version: "next of 1.20.11", versionType: "custom", }, { lessThanOrEqual: "1.21.5", status: "affected", version: "unspecified", versionType: "custom", }, { lessThan: "unspecified", status: "unknown", version: "next of 1.21.5", versionType: "custom", }, { lessThanOrEqual: "1.22.2", status: "affected", version: "unspecified", versionType: "custom", }, { lessThan: "unspecified", status: "unknown", version: "next of 1.22.2", versionType: "custom", }, ], }, ], credits: [ { lang: "en", value: "Rob Scott", }, ], datePublic: "2021-07-14T00:00:00", descriptions: [ { lang: "en", value: "A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.", }, ], metrics: [ { cvssV3_1: { attackComplexity: "HIGH", attackVector: "NETWORK", availabilityImpact: "NONE", baseScore: 3.1, baseSeverity: "LOW", confidentialityImpact: "LOW", integrityImpact: "NONE", privilegesRequired: "LOW", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", version: "3.1", }, }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-441", description: "CWE-441 Unintended Proxy or Intermediary", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2021-10-14T08:06:14", orgId: "a6081bf6-c852-4425-ad4f-a67919267565", shortName: "kubernetes", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE", }, { tags: [ "x_refsource_MISC", ], url: "https://github.com/kubernetes/kubernetes/issues/103675", }, { tags: [ "x_refsource_CONFIRM", ], url: "https://security.netapp.com/advisory/ntap-20211014-0001/", }, ], source: { defect: [ "https://github.com/kubernetes/kubernetes/issues/103675", ], discovery: "EXTERNAL", }, title: "Holes in EndpointSlice Validation Enable Host Network Hijack", x_generator: { engine: "Vulnogram 0.0.9", }, x_legacyV4Record: { CVE_data_meta: { ASSIGNER: "security@kubernetes.io", DATE_PUBLIC: "2021-07-14T21:23:00.000Z", ID: "CVE-2021-25740", STATE: "PUBLIC", TITLE: "Holes in EndpointSlice Validation Enable Host Network Hijack", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "Kubernetes", version: { version_data: [ { version_affected: "<=", version_value: "1.20.11", }, { version_affected: ">?", version_value: "1.20.11", }, { version_affected: "<=", version_value: "1.21.5", }, { version_affected: ">?", version_value: "1.21.5", }, { version_affected: "<=", version_value: "1.22.2", }, { version_affected: ">?", version_value: "1.22.2", }, ], }, }, ], }, vendor_name: "Kubernetes", }, ], }, }, credit: [ { lang: "eng", value: "Rob Scott", }, ], data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "eng", value: "A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.", }, ], }, generator: { engine: "Vulnogram 0.0.9", }, impact: { cvss: { attackComplexity: "HIGH", attackVector: "NETWORK", availabilityImpact: "NONE", baseScore: 3.1, baseSeverity: "LOW", confidentialityImpact: "LOW", integrityImpact: "NONE", privilegesRequired: "LOW", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", version: "3.1", }, }, problemtype: { problemtype_data: [ { description: [ { lang: "eng", value: "CWE-441 Unintended Proxy or Intermediary", }, ], }, ], }, references: { reference_data: [ { name: "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE", refsource: "MISC", url: "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE", }, { name: "https://github.com/kubernetes/kubernetes/issues/103675", refsource: "MISC", url: "https://github.com/kubernetes/kubernetes/issues/103675", }, { name: "https://security.netapp.com/advisory/ntap-20211014-0001/", refsource: "CONFIRM", url: "https://security.netapp.com/advisory/ntap-20211014-0001/", }, ], }, source: { defect: [ "https://github.com/kubernetes/kubernetes/issues/103675", ], discovery: "EXTERNAL", }, }, }, }, cveMetadata: { assignerOrgId: "a6081bf6-c852-4425-ad4f-a67919267565", assignerShortName: "kubernetes", cveId: "CVE-2021-25740", datePublished: "2021-09-20T17:05:18.065542Z", dateReserved: "2021-01-21T00:00:00", dateUpdated: "2024-09-16T19:30:45.241Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { nvd: "{\"cve\":{\"id\":\"CVE-2021-25740\",\"sourceIdentifier\":\"jordan@liggitt.net\",\"published\":\"2021-09-20T17:15:08.283\",\"lastModified\":\"2024-11-21T05:55:19.590\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.\"},{\"lang\":\"es\",\"value\":\"Se ha detectado un problema de seguridad en Kubernetes que podría permitir a usuarios enviar tráfico de red a lugares a los que de otro modo no tendrían acceso por medio de un ataque de tipo confused deputy\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":3.1,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.6,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":3.1,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.6,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:P/I:N/A:N\",\"baseScore\":3.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.8,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-441\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-610\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"14C32308-314D-4E0D-B15F-6A68DF21E9F9\"}]}]}],\"references\":[{\"url\":\"https://github.com/kubernetes/kubernetes/issues/103675\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Mailing List\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20211014-0001/\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/kubernetes/kubernetes/issues/103675\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20211014-0001/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}", }, }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.