{
  "id": "CVE-2019-9901",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2019-04-25T16:29:01.200",
  "lastModified": "2024-11-21T04:52:32.450",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Envoy 1.9.0 and before does not normalize HTTP URL paths. A remote attacker may craft a relative path, e.g., something/../admin, to bypass access control, e.g., a block on /admin. A backend server could then interpret the non-normalized path and provide an attacker access beyond the scope provided for by the access control policy."
    },
    {
      "lang": "es",
      "value": "Envoy versi\u00f3n 1.9.0 y anteriores no normalizan las path URL HTTP. Un atacante remoto puede crear un path relativo, por ejemplo, algo/.. /admin, para omitir el control de acceso, por ejemplo, un bloque en/admin. A continuaci\u00f3n, un servidor back-end podr\u00eda interpretar el path no normalizado y suministrar a un atacante acceso m\u00e1s all\u00e1 del \u00e1mbito suministrado por la Directiva de control de acceso."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "cve@mitre.org",
        "type": "Secondary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.7
      },
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
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          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
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        "impactScore": 6.0
      }
    ],
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-706"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "1.9.0",
              "matchCriteriaId": "BF47B6A7-F357-4074-B90D-8BEB0AB53DC0"
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  "references": [
    {
      "url": "https://github.com/envoyproxy/envoy/issues/6435",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Third Party Advisory"
      ]
    },
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      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcx5-93pw-jw2w",
      "source": "cve@mitre.org"
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    {
      "url": "https://groups.google.com/forum/#%21topic/envoy-announce/VoHfnDqZiAM",
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      "url": "https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history",
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    {
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}