GSD-2022-3095

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
The implementation of backslash parsing in the Dart URI class for versions prior to 2.18 and Flutter versions prior to 3.30 differs from the WhatWG URL standards. Dart uses the RFC 3986 syntax, which creates incompatibilities with the '\' characters in URIs, which can lead to auth bypass in webapps interpreting URIs. We recommend updating Dart or Flutter to mitigate the issue.
Aliases
Aliases
CVE-2022-3095
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{
  "GSD": {
    "alias": "CVE-2022-3095",
    "id": "GSD-2022-3095"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-3095"
      ],
      "details": "The implementation of backslash parsing in the Dart URI class for versions prior to 2.18 and Flutter versions prior to 3.30 differs from the WhatWG URL standards. Dart uses the RFC 3986 syntax, which creates incompatibilities with the \u0027\\\u0027 characters in URIs, which can lead to auth bypass in webapps interpreting URIs. We recommend updating Dart or Flutter to mitigate the issue.",
      "id": "GSD-2022-3095",
      "modified": "2023-12-13T01:19:39.840912Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@google.com",
        "ID": "CVE-2022-3095",
        "STATE": "PUBLIC",
        "TITLE": "Incorrect parsing of the backslash characters in Dart library"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Dart",
                    "version": {
                      "version_data": [
                        {
                          "platform": "all",
                          "version_affected": "\u003c",
                          "version_name": "stable",
                          "version_value": "2.18.2"
                        },
                        {
                          "platform": "all",
                          "version_affected": "\u003c",
                          "version_name": "Flutter",
                          "version_value": "3.3.3"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Google LLC"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Sohom Datta, Cryptonite, MIT Manipal"
        }
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          }
        ]
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      "impact": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-20 Improper Input Validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/dart-lang/sdk/blob/master/CHANGELOG.md#2182---2022-09-28",
            "refsource": "CONFIRM",
            "url": "https://github.com/dart-lang/sdk/blob/master/CHANGELOG.md#2182---2022-09-28"
          }
        ]
      },
      "source": {
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:dart:dart_software_development_kit:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.18.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:flutter:flutter:*:*:*:*:*:*:*:*",
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/dart-lang/sdk/blob/master/CHANGELOG.md#2182---2022-09-28",
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                "Third Party Advisory"
              ],
              "url": "https://github.com/dart-lang/sdk/blob/master/CHANGELOG.md#2182---2022-09-28"
            }
          ]
        }
      },
      "impact": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-10-31T16:20Z",
      "publishedDate": "2022-10-27T16:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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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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