{
  "id": "CVE-2023-23934",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2023-02-14T20:15:17.370",
  "lastModified": "2024-11-21T07:47:07.947",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Werkzeug is a comprehensive WSGI web application library. Browsers may allow \"nameless\" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "baseScore": 2.6,
          "baseSeverity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 1.4
      },
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "baseScore": 3.5,
          "baseSeverity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 1.4
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security-advisories@github.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    },
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:palletsprojects:werkzeug:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "2.2.3",
              "matchCriteriaId": "EE8F26B3-94E2-45A2-A114-56AF4D262414"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/pallets/werkzeug/releases/tag/2.2.3",
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q",
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20230818-0003/",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://www.debian.org/security/2023/dsa-5470",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/pallets/werkzeug/releases/tag/2.2.3",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20230818-0003/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2023/dsa-5470",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}