FKIE_CVE-2019-11881

Vulnerability from fkie_nvd - Published: 2019-06-10 20:29 - Updated: 2026-06-17 02:13
Severity
4.7 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Summary
A vulnerability exists in Rancher before 2.2.4 in the login component, where the errorMsg parameter can be tampered to display arbitrary content, filtering tags but not special characters or symbols. There's no other limitation of the message, allowing malicious users to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a "This version of Rancher is outdated, please visit https://malicious.rancher.site/upgrading" message.
References
cve@mitre.orghttps://github.com/MauroEldritch/VanCleefThird Party Advisory
cve@mitre.orghttps://github.com/rancher/rancher/blob/v2.2.4/pkg/auth/providers/saml/saml_client.go#L282
cve@mitre.orghttps://github.com/rancher/rancher/commit/e59adbc7565251919d84d6e353421104be8da06e
cve@mitre.orghttps://github.com/rancher/rancher/issues/20216Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/MauroEldritch/VanCleefThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/rancher/rancher/issues/20216Exploit, Issue Tracking, Third Party Advisory
Impacted products
Vendor Product Version
suse rancher 2.1.4
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:suse:rancher:2.1.4:*:*:*:*:*:*:*",
              "matchCriteriaId": "4B7E16C3-24B1-4EE5-8101-12089CEC15B1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability exists in Rancher before 2.2.4 in the login component, where the errorMsg parameter can be tampered to display arbitrary content, filtering tags but not special characters or symbols. There\u0027s no other limitation of the message, allowing malicious users to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a \"This version of Rancher is outdated, please visit https://malicious.rancher.site/upgrading\" message."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad  Rancher 2.1.4 en el componente de inicio de sesi\u00f3n, donde el par\u00e1metro errorMsg puede ser manipularse para mostrar contenido arbitrario, filtrando etiquetas pero caracteres especiales o s\u00edmbolos. No hay otra limitaci\u00f3n del mensaje, permitiendo a usuarios maliciosos atraer a  usuarios para visitar con t\u00e1cticas de miedo. por ejemplo, mostrando un mensaje \"Esta versi\u00f3n de Rancher est\u00e1 desactualizada, visite https://malicious.rancher.site/upgrading\" ."
    }
  ],
  "id": "CVE-2019-11881",
  "lastModified": "2026-06-17T02:13:47.970",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-06-10T20:29:01.090",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/MauroEldritch/VanCleef"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/rancher/rancher/blob/v2.2.4/pkg/auth/providers/saml/saml_client.go#L282"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/rancher/rancher/commit/e59adbc7565251919d84d6e353421104be8da06e"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/rancher/rancher/issues/20216"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/MauroEldritch/VanCleef"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/rancher/rancher/issues/20216"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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