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FKIE_CVE-2021-25742

Vulnerability from fkie_nvd - Published: 2021-10-29 04:15 - Updated: 2026-06-17 03:42
Severity
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
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
jordan@liggitt.nethttps://github.com/kubernetes/ingress-nginx/issues/7837Exploit, Issue Tracking, Mitigation, Third Party Advisory
jordan@liggitt.nethttps://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQYMailing List, Mitigation, Third Party Advisory
jordan@liggitt.nethttps://security.netapp.com/advisory/ntap-20211203-0001/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/kubernetes/ingress-nginx/issues/7837Exploit, Issue Tracking, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQYMailing List, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211203-0001/Third Party Advisory
Impacted products
Vendor Product Version
kubernetes ingress-nginx *
kubernetes ingress-nginx 1.0.0
netapp trident -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "jordan@liggitt.net"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CEC0CA26-0429-4DD1-904B-5C7637C42704",
              "versionEndExcluding": "0.49.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:kubernetes:ingress-nginx:1.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "8DA09AFA-48CD-4A55-9C15-A96249C704D0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:netapp:trident:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "5D9A34F5-AC03-4098-A37D-AD50727DDB11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "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 funci\u00f3n de fragmentos personalizados para obtener todos los secretos del cl\u00faster"
    }
  ],
  "id": "CVE-2021-25742",
  "lastModified": "2026-06-17T03:42:23.243",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.7,
        "source": "jordan@liggitt.net",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.1,
          "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:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-10-29T04:15:08.220",
  "references": [
    {
      "source": "jordan@liggitt.net",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://github.com/kubernetes/ingress-nginx/issues/7837"
    },
    {
      "source": "jordan@liggitt.net",
      "tags": [
        "Mailing List",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY"
    },
    {
      "source": "jordan@liggitt.net",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20211203-0001/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://github.com/kubernetes/ingress-nginx/issues/7837"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20211203-0001/"
    }
  ],
  "sourceIdentifier": "jordan@liggitt.net",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "jordan@liggitt.net",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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