gsd-2021-23976
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access for UI spoofing and could also lead to cross-origin attacks on targeted websites. Note: This issue is a different issue from CVE-2020-26954 and only affected Firefox for Android. Other operating systems are unaffected. This vulnerability affects Firefox < 86.
Aliases
Aliases
CVE-2021-23976


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-23976",
    "description": "When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access for UI spoofing and could also lead to cross-origin attacks on targeted websites. Note: This issue is a different issue from CVE-2020-26954 and only affected Firefox for Android. Other operating systems are unaffected. This vulnerability affects Firefox \u003c 86.",
    "id": "GSD-2021-23976",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-23976.html",
      "https://security.archlinux.org/CVE-2021-23976"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-23976"
      ],
      "details": "When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access for UI spoofing and could also lead to cross-origin attacks on targeted websites. Note: This issue is a different issue from CVE-2020-26954 and only affected Firefox for Android. Other operating systems are unaffected. This vulnerability affects Firefox \u003c 86.",
      "id": "GSD-2021-23976",
      "modified": "2023-12-13T01:23:30.382354Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "security@mozilla.org",
        "ID": "CVE-2021-23976",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Firefox",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 86"
                        }
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                    }
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              },
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Local spoofing of web manifests for arbitrary pages in Firefox for Android"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.mozilla.org/security/advisories/mfsa2021-07/",
            "refsource": "MISC",
            "url": "https://www.mozilla.org/security/advisories/mfsa2021-07/"
          },
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            "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1684627",
            "refsource": "MISC",
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1684627"
          },
          {
            "name": "GLSA-202104-10",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202104-10"
          }
        ]
      }
    },
    "mozilla.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@mozilla.org",
        "ID": "CVE-2021-23976"
      },
      "affects": {
        "vendor": {
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              "product": {
                "product_data": [
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                    "product_name": "Firefox",
                    "version": {
                      "version_data": [
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                          "version_affected": "\u003c",
                          "version_value": "86"
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            "value": "When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access for UI spoofing and could also lead to cross-origin attacks on targeted websites.\u003cbr\u003e*Note: This issue is a different issue from CVE-2020-26954 and only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox \u003c 86."
          }
        ]
      },
      "problemtype": {
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            "url": "https://www.mozilla.org/security/advisories/mfsa2021-07/"
          },
          {
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          }
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    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:*",
                "cpe_name": [],
                "versionEndExcluding": "86.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2021-23976"
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-1021"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1684627",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Permissions Required",
                "Vendor Advisory"
              ],
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1684627"
            },
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2021-07/",
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                "Vendor Advisory"
              ],
              "url": "https://www.mozilla.org/security/advisories/mfsa2021-07/"
            },
            {
              "name": "GLSA-202104-10",
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              "tags": [
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              "url": "https://security.gentoo.org/glsa/202104-10"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2022-05-27T18:17Z",
      "publishedDate": "2021-02-26T02:15Z"
    }
  }
}


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