CVE-2021-23385 (GCVE-0-2021-23385)
Vulnerability from cvelistv5
Published
2022-08-02 13:25
Modified
2024-09-16 22:08
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C
CWE
  • Open Redirect
Summary
This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore.
References
report@snyk.iohttps://github.com/mattupstate/flask-securityProduct, Third Party Advisory
report@snyk.iohttps://lists.debian.org/debian-lts-announce/2023/08/msg00034.html
report@snyk.iohttps://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234Exploit, Third Party Advisory
report@snyk.iohttps://snyk.io/blog/url-confusion-vulnerabilities/Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mattupstate/flask-securityProduct, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html
af854a3a-2127-422b-91ae-364da2661108https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://snyk.io/blog/url-confusion-vulnerabilities/Technical Description, Third Party Advisory
Impacted products
Vendor Product Version
n/a Flask-Security Version: 0   < unspecified
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:05:55.663Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/mattupstate/flask-security"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://snyk.io/blog/url-confusion-vulnerabilities/"
          },
          {
            "name": "[debian-lts-announce] 20230828 [SECURITY] [DLA 3545-1] flask-security security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Flask-Security",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Noam Moshe of Claroty"
        }
      ],
      "datePublic": "2022-08-02T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\\\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using \u0027autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "remediationLevel": "UNAVAILABLE",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 5.1,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Open Redirect",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-08-28T18:06:09.073913",
        "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
        "shortName": "snyk"
      },
      "references": [
        {
          "url": "https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234"
        },
        {
          "url": "https://github.com/mattupstate/flask-security"
        },
        {
          "url": "https://snyk.io/blog/url-confusion-vulnerabilities/"
        },
        {
          "name": "[debian-lts-announce] 20230828 [SECURITY] [DLA 3545-1] flask-security security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html"
        }
      ],
      "title": "Open Redirect"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
    "assignerShortName": "snyk",
    "cveId": "CVE-2021-23385",
    "datePublished": "2022-08-02T13:25:14.717803Z",
    "dateReserved": "2021-01-08T00:00:00",
    "dateUpdated": "2024-09-16T22:08:36.808Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-23385\",\"sourceIdentifier\":\"report@snyk.io\",\"published\":\"2022-08-02T14:15:10.017\",\"lastModified\":\"2024-11-21T05:51:37.157\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\\\\\\\\\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using \u0027autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore.\"},{\"lang\":\"es\",\"value\":\"Esto afecta a todas las versiones del paquete Flask-Security. Cuando son usadas las funciones get_post_logout_redirect y get_post_login_redirect, es posible omitirse la comprobaci\u00f3n de la URL y redirigir a un usuario a una URL arbitraria proporcionando m\u00faltiples barras diagonales traseras como \\\\\\\\\\\\Ndevil.com/path. Esta vulnerabilidad s\u00f3lo es explotable si es usado un servidor WSGI alternativo que no sea Werkzeug, o es modificado el comportamiento por defecto de Werkzeug usando \\\"autocorrect_location_header=False. **Nota:** Flask-Security ya no es mantenido\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"report@snyk.io\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.5},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-601\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:flask-security_project:flask-security:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A64C5EBD-CA0E-4C5C-A6DD-491E03BF261C\"}]}]}],\"references\":[{\"url\":\"https://github.com/mattupstate/flask-security\",\"source\":\"report@snyk.io\",\"tags\":[\"Product\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html\",\"source\":\"report@snyk.io\"},{\"url\":\"https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234\",\"source\":\"report@snyk.io\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://snyk.io/blog/url-confusion-vulnerabilities/\",\"source\":\"report@snyk.io\",\"tags\":[\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/mattupstate/flask-security\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Product\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://snyk.io/blog/url-confusion-vulnerabilities/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Technical Description\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.