{
  "id": "CVE-2020-8595",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2020-02-12T15:15:14.727",
  "lastModified": "2024-11-21T05:39:05.677",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass. The Authentication Policy exact-path matching logic can allow unauthorized access to HTTP paths even if they are configured to be only accessed after presenting a valid JWT token. For example, an attacker can add a ? or # character to a URI that would otherwise satisfy an exact-path match."
    },
    {
      "lang": "es",
      "value": "Las versiones Istio 1.2.10 (End of Life) y anteriores, 1.3 a 1.3.7, y 1.4 a 1.4.3 permiten la omisi\u00f3n de autenticaci\u00f3n. La l\u00f3gica de coincidencia de ruta exacta de la Pol\u00edtica de autenticaci\u00f3n puede permitir el acceso no autorizado a rutas HTTP incluso si est\u00e1n configuradas para acceder solo despu\u00e9s de presentar un token JWT v\u00e1lido. Por ejemplo, un atacante puede agregar un? o # car\u00e1cter a un URI que de otro modo satisfar\u00eda una coincidencia de ruta exacta."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4
      }
    ],
    "cvssMetricV2": [
      {
        "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-287"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.3",
              "versionEndIncluding": "1.3.7",
              "matchCriteriaId": "4525B2C8-CAF7-4A8D-8BF3-0109A860D07D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.4.0",
              "versionEndIncluding": "1.4.3",
              "matchCriteriaId": "4620694C-DF2C-44BE-B3B7-43D0B4302AD4"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "732F14CE-7994-4DD2-A28B-AE9E79826C01"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2020:0477",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://access.redhat.com/security/cve/cve-2020-8595",
      "source": "cve@mitre.org",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/istio/istio/commits/master",
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://istio.io/news/security/",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://istio.io/news/security/istio-security-2020-001/",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2020:0477",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://access.redhat.com/security/cve/cve-2020-8595",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/istio/istio/commits/master",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://istio.io/news/security/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://istio.io/news/security/istio-security-2020-001/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}