cve-2021-25742
Vulnerability from cvelistv5
Published
2021-10-29 04:05
Modified
2024-09-16 23:06
Severity ?
EPSS score ?
0.71%
(0.71092)
Summary
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.
References
▼ | URL | Tags | |
---|---|---|---|
jordan@liggitt.net | https://github.com/kubernetes/ingress-nginx/issues/7837 | Exploit, Issue Tracking, Mitigation, Third Party Advisory | |
jordan@liggitt.net | https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY | Mailing List, Mitigation, Third Party Advisory | |
jordan@liggitt.net | https://security.netapp.com/advisory/ntap-20211203-0001/ | Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://github.com/kubernetes/ingress-nginx/issues/7837 | Exploit, Issue Tracking, Mitigation, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY | Mailing List, Mitigation, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://security.netapp.com/advisory/ntap-20211203-0001/ | Third Party Advisory |
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
Kubernetes | Kubernetes ingress-nginx |
Version: unspecified < Version: unspecified < |
{ containers: { adp: [ { providerMetadata: { dateUpdated: "2024-08-03T20:11:27.558Z", 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/mT4JJxi9tQY", }, { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://github.com/kubernetes/ingress-nginx/issues/7837", }, { tags: [ "x_refsource_CONFIRM", "x_transferred", ], url: "https://security.netapp.com/advisory/ntap-20211203-0001/", }, ], title: "CVE Program Container", }, ], cna: { affected: [ { product: "Kubernetes ingress-nginx", vendor: "Kubernetes", versions: [ { lessThanOrEqual: "0.49.0", status: "affected", version: "unspecified", versionType: "custom", }, { lessThan: "unspecified", status: "unknown", version: "next of 0.49.0", versionType: "custom", }, { lessThanOrEqual: "1.0.0", status: "affected", version: "unspecified", versionType: "custom", }, { lessThan: "unspecified", status: "unknown", version: "next of 1.0.0", versionType: "custom", }, ], }, ], credits: [ { lang: "en", value: "Mitch Hulscher", }, ], datePublic: "2021-10-21T00:00:00", descriptions: [ { lang: "en", value: "A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.", }, ], metrics: [ { cvssV3_1: { attackComplexity: "LOW", attackVector: "NETWORK", availabilityImpact: "LOW", baseScore: 7.6, baseSeverity: "HIGH", confidentialityImpact: "HIGH", integrityImpact: "LOW", privilegesRequired: "LOW", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L", version: "3.1", }, }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-20", description: "CWE-20: Improper Input Validation", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2022-05-06T00:50:12", orgId: "a6081bf6-c852-4425-ad4f-a67919267565", shortName: "kubernetes", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY", }, { tags: [ "x_refsource_MISC", ], url: "https://github.com/kubernetes/ingress-nginx/issues/7837", }, { tags: [ "x_refsource_CONFIRM", ], url: "https://security.netapp.com/advisory/ntap-20211203-0001/", }, ], source: { defect: [ "https://github.com/kubernetes/ingress-nginx/issues/7837", ], discovery: "EXTERNAL", }, title: "Ingress-nginx custom snippets allows retrieval of ingress-nginx serviceaccount token and secrets across all namespaces", workarounds: [ { lang: "en", value: "This can be mitigated by disallowing snippet annotations on a supported version. Refer to https://github.com/kubernetes/ingress-nginx/issues/7837 for instructions.", }, ], x_generator: { engine: "Vulnogram 0.0.9", }, x_legacyV4Record: { CVE_data_meta: { ASSIGNER: "security@kubernetes.io", DATE_PUBLIC: "2021-10-21T16:15:00.000Z", ID: "CVE-2021-25742", STATE: "PUBLIC", TITLE: "Ingress-nginx custom snippets allows retrieval of ingress-nginx serviceaccount token and secrets across all namespaces", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "Kubernetes ingress-nginx", version: { version_data: [ { version_affected: "<=", version_value: "0.49.0", }, { version_affected: ">?", version_value: "0.49.0", }, { version_affected: "<=", version_value: "1.0.0", }, { version_affected: ">?", version_value: "1.0.0", }, ], }, }, ], }, vendor_name: "Kubernetes", }, ], }, }, credit: [ { lang: "eng", value: "Mitch Hulscher", }, ], data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "eng", value: "A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.", }, ], }, generator: { engine: "Vulnogram 0.0.9", }, impact: { cvss: { attackComplexity: "LOW", attackVector: "NETWORK", availabilityImpact: "LOW", baseScore: 7.6, baseSeverity: "HIGH", confidentialityImpact: "HIGH", integrityImpact: "LOW", privilegesRequired: "LOW", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L", version: "3.1", }, }, problemtype: { problemtype_data: [ { description: [ { lang: "eng", value: "CWE-20: Improper Input Validation", }, ], }, ], }, references: { reference_data: [ { name: "https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY", refsource: "MISC", url: "https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY", }, { name: "https://github.com/kubernetes/ingress-nginx/issues/7837", refsource: "MISC", url: "https://github.com/kubernetes/ingress-nginx/issues/7837", }, { name: "https://security.netapp.com/advisory/ntap-20211203-0001/", refsource: "CONFIRM", url: "https://security.netapp.com/advisory/ntap-20211203-0001/", }, ], }, source: { defect: [ "https://github.com/kubernetes/ingress-nginx/issues/7837", ], discovery: "EXTERNAL", }, work_around: [ { lang: "en", value: "This can be mitigated by disallowing snippet annotations on a supported version. Refer to https://github.com/kubernetes/ingress-nginx/issues/7837 for instructions.", }, ], }, }, }, cveMetadata: { assignerOrgId: "a6081bf6-c852-4425-ad4f-a67919267565", assignerShortName: "kubernetes", cveId: "CVE-2021-25742", datePublished: "2021-10-29T04:05:10.713250Z", dateReserved: "2021-01-21T00:00:00", dateUpdated: "2024-09-16T23:06:12.392Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { nvd: "{\"cve\":{\"id\":\"CVE-2021-25742\",\"sourceIdentifier\":\"jordan@liggitt.net\",\"published\":\"2021-10-29T04:15:08.220\",\"lastModified\":\"2024-11-21T05:55:19.853\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.\"},{\"lang\":\"es\",\"value\":\"Se ha detectado un problema de seguridad en ingress-nginx donde un usuario que puede crear o actualizar objetos de entrada puede usar la función de fragmentos personalizados para obtener todos los secretos del clúster\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L\",\"baseScore\":7.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":4.7},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":4.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:P/I:P/A:N\",\"baseScore\":5.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":4.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"0.49.1\",\"matchCriteriaId\":\"CEC0CA26-0429-4DD1-904B-5C7637C42704\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:ingress-nginx:1.0.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8DA09AFA-48CD-4A55-9C15-A96249C704D0\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:trident:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5D9A34F5-AC03-4098-A37D-AD50727DDB11\"}]}]}],\"references\":[{\"url\":\"https://github.com/kubernetes/ingress-nginx/issues/7837\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Mailing List\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20211203-0001/\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/kubernetes/ingress-nginx/issues/7837\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20211203-0001/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}", }, }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.