cve-2021-25745
Vulnerability from cvelistv5
Published
2022-05-06 00:50
Modified
2024-09-16 18:24
Severity ?
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
EPSS score ?
0.18% (0.36071)
Summary
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the spec.rules[].http.paths[].path field of an Ingress object (in the networking.k8s.io or extensions API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.
References
jordan@liggitt.nethttps://github.com/kubernetes/ingress-nginx/issues/8502Issue Tracking, Mitigation, Third Party Advisory
jordan@liggitt.nethttps://groups.google.com/g/kubernetes-security-announce/c/7vQrpDZeBlcIssue Tracking, Mailing List, Mitigation, Third Party Advisory
jordan@liggitt.nethttps://security.netapp.com/advisory/ntap-20220609-0006/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/kubernetes/ingress-nginx/issues/8502Issue Tracking, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/g/kubernetes-security-announce/c/7vQrpDZeBlcIssue Tracking, Mailing List, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220609-0006/Third Party Advisory
Impacted products
Vendor Product Version
Kubernetes Kubernetes ingress-nginx Version: unspecified   < 1.2.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-03T20:11:27.660Z",
               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/7vQrpDZeBlc",
               },
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://github.com/kubernetes/ingress-nginx/issues/8502",
               },
               {
                  tags: [
                     "x_refsource_CONFIRM",
                     "x_transferred",
                  ],
                  url: "https://security.netapp.com/advisory/ntap-20220609-0006/",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "Kubernetes ingress-nginx",
               vendor: "Kubernetes",
               versions: [
                  {
                     lessThan: "1.2.0",
                     status: "affected",
                     version: "unspecified",
                     versionType: "custom",
                  },
               ],
            },
         ],
         credits: [
            {
               lang: "en",
               value: "Gafnit Amiga",
            },
         ],
         datePublic: "2022-04-22T00:00:00",
         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 spec.rules[].http.paths[].path field of an Ingress object (in the networking.k8s.io or extensions API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to 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: "2022-06-09T18:06:16",
            orgId: "a6081bf6-c852-4425-ad4f-a67919267565",
            shortName: "kubernetes",
         },
         references: [
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://groups.google.com/g/kubernetes-security-announce/c/7vQrpDZeBlc",
            },
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://github.com/kubernetes/ingress-nginx/issues/8502",
            },
            {
               tags: [
                  "x_refsource_CONFIRM",
               ],
               url: "https://security.netapp.com/advisory/ntap-20220609-0006/",
            },
         ],
         source: {
            defect: [
               "https://github.com/kubernetes/ingress-nginx/issues/8502",
            ],
            discovery: "EXTERNAL",
         },
         title: "Ingress-nginx path can be pointed to service account token file",
         x_generator: {
            engine: "Vulnogram 0.0.9",
         },
         x_legacyV4Record: {
            CVE_data_meta: {
               ASSIGNER: "security@kubernetes.io",
               DATE_PUBLIC: "2022-04-22T16:30:00.000Z",
               ID: "CVE-2021-25745",
               STATE: "PUBLIC",
               TITLE: "Ingress-nginx path can be pointed to service account token file",
            },
            affects: {
               vendor: {
                  vendor_data: [
                     {
                        product: {
                           product_data: [
                              {
                                 product_name: "Kubernetes ingress-nginx",
                                 version: {
                                    version_data: [
                                       {
                                          version_affected: "<",
                                          version_value: "1.2.0",
                                       },
                                    ],
                                 },
                              },
                           ],
                        },
                        vendor_name: "Kubernetes",
                     },
                  ],
               },
            },
            credit: [
               {
                  lang: "eng",
                  value: "Gafnit Amiga",
               },
            ],
            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 spec.rules[].http.paths[].path field of an Ingress object (in the networking.k8s.io or extensions API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to 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/7vQrpDZeBlc",
                     refsource: "MISC",
                     url: "https://groups.google.com/g/kubernetes-security-announce/c/7vQrpDZeBlc",
                  },
                  {
                     name: "https://github.com/kubernetes/ingress-nginx/issues/8502",
                     refsource: "MISC",
                     url: "https://github.com/kubernetes/ingress-nginx/issues/8502",
                  },
                  {
                     name: "https://security.netapp.com/advisory/ntap-20220609-0006/",
                     refsource: "CONFIRM",
                     url: "https://security.netapp.com/advisory/ntap-20220609-0006/",
                  },
               ],
            },
            source: {
               defect: [
                  "https://github.com/kubernetes/ingress-nginx/issues/8502",
               ],
               discovery: "EXTERNAL",
            },
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "a6081bf6-c852-4425-ad4f-a67919267565",
      assignerShortName: "kubernetes",
      cveId: "CVE-2021-25745",
      datePublished: "2022-05-06T00:50:14.042796Z",
      dateReserved: "2021-01-21T00:00:00",
      dateUpdated: "2024-09-16T18:24:11.711Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2021-25745\",\"sourceIdentifier\":\"jordan@liggitt.net\",\"published\":\"2022-05-06T01:15:09.047\",\"lastModified\":\"2024-11-21T05:55:20.110\",\"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 spec.rules[].http.paths[].path field of an Ingress object (in the networking.k8s.io or extensions API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.\"},{\"lang\":\"es\",\"value\":\"Se ha detectado un problema de seguridad en ingress-nginx en el que un usuario que puede crear o actualizar objetos ingress puede usar el campo spec.rules[].http.paths[].path de un objeto Ingress (en el grupo networking.k8s.io o extensions API) para obtener las credenciales del controlador ingress-nginx. En la configuración por defecto, esa credencial presenta acceso a 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:H/A:N\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":5.2}],\"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\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.2.0\",\"matchCriteriaId\":\"7DD01B7D-743B-41AF-9D8F-D8C6038E6BD0\"}]}]}],\"references\":[{\"url\":\"https://github.com/kubernetes/ingress-nginx/issues/8502\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Issue Tracking\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-announce/c/7vQrpDZeBlc\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Issue Tracking\",\"Mailing List\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20220609-0006/\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/kubernetes/ingress-nginx/issues/8502\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-announce/c/7vQrpDZeBlc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Mailing List\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20220609-0006/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




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.