Vulnerability-Lookup

CNVD-2021-04656

Vulnerability from cnvd - Published: 2021-01-20

Title

Mozilla Firefox存在未明漏洞（CNVD-2021-04656）

Description

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 84之前版本中存在安全漏洞。当安装在用户设备上的恶意应用程序向Firefox for Android广播意图时，可以指定任意标头，导致滥用环境权限或会话固定等攻击。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Mozilla Firefox存在未明漏洞（CNVD-2021-04656）的补丁

Patch Description

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 84之前版本中存在安全漏洞。当安装在用户设备上的恶意应用程序向Firefox for Android广播意图时，可以指定任意标头，导致滥用环境权限或会话固定等攻击。目前没有详细的漏洞细节提供。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.mozilla.org/en-US/security/advisories/mfsa2020-54/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-26975

Impacted products

Name
Mozilla Firefox for Android <84

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-26975",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-26975"
    }
  },
  "description": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\n\nMozilla Firefox 84\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5f53\u5b89\u88c5\u5728\u7528\u6237\u8bbe\u5907\u4e0a\u7684\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u5411Firefox for Android\u5e7f\u64ad\u610f\u56fe\u65f6\uff0c\u53ef\u4ee5\u6307\u5b9a\u4efb\u610f\u6807\u5934\uff0c\u5bfc\u81f4\u6ee5\u7528\u73af\u5883\u6743\u9650\u6216\u4f1a\u8bdd\u56fa\u5b9a\u7b49\u653b\u51fb\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-54/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-04656",
  "openTime": "2021-01-20",
  "patchDescription": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\r\n\r\nMozilla Firefox 84\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5f53\u5b89\u88c5\u5728\u7528\u6237\u8bbe\u5907\u4e0a\u7684\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u5411Firefox for Android\u5e7f\u64ad\u610f\u56fe\u65f6\uff0c\u53ef\u4ee5\u6307\u5b9a\u4efb\u610f\u6807\u5934\uff0c\u5bfc\u81f4\u6ee5\u7528\u73af\u5883\u6743\u9650\u6216\u4f1a\u8bdd\u56fa\u5b9a\u7b49\u653b\u51fb\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Mozilla Firefox\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-04656\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Mozilla Firefox for Android \u003c84"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-26975",
  "serverity": "\u4e2d",
  "submitTime": "2021-01-13",
  "title": "Mozilla Firefox\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-04656\uff09"
}

CVE-2020-26975 (GCVE-0-2020-26975)

Vulnerability from cvelistv5 – Published: 2021-01-07 13:52 – Updated: 2024-08-04 16:03

Summary

When a malicious application installed on the user's device broadcast an Intent to Firefox for Android, arbitrary headers could have been specified, leading to attacks such as abusing ambient authority or session fixation. This was resolved by only allowing certain safe-listed headers. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84.

Severity

No CVSS data available.

CWE

Malicious applications on Android could have induced Firefox for Android into sending arbitrary attacker-specified headers

Assigner

mozilla mitre root

References

2 references

URL	Tags
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://bugzilla.mozilla.org/show_bug.cgi?id=1661071	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Mozilla	Firefox	Affected: unspecified , < 84 (custom)

Show details on NVD website

JSON

To clipboard

{
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:03:23.168Z",
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            ],
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          },
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              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1661071"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
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              "status": "affected",
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            }
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          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Malicious applications on Android could have induced Firefox for Android into sending arbitrary attacker-specified headers",
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            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-07T13:52:30.000Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
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      },
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          "tags": [
            "x_refsource_MISC"
          ],
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1661071"
        }
      ],
      "x_legacyV4Record": {
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        },
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              {
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                    {
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                      "version": {
                        "version_data": [
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                          }
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            }
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    "dateReserved": "2020-10-12T00:00:00.000Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.