Vulnerability-Lookup

CNVD-2020-65141

Vulnerability from cnvd - Published: 2020-11-19

Title

Mozilla Firefox跨站脚本漏洞（ CNVD-2020-65141）

Description

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 FireFox 存在跨站脚本漏洞，该漏洞源于SVG代码中的解析和事件加载不匹配可能导致加载事件被触发，即使在清除之后也是如此。已经能够利用特权内部页面中的XSS漏洞的攻击者可能已经使用此攻击来绕过我们的内置消毒器。

Severity

中

Patch Name

Mozilla Firefox跨站脚本漏洞（ CNVD-2020-65141）的补丁

Patch Description

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 FireFox 存在跨站脚本漏洞，该漏洞源于SVG代码中的解析和事件加载不匹配可能导致加载事件被触发，即使在清除之后也是如此。已经能够利用特权内部页面中的XSS漏洞的攻击者可能已经使用此攻击来绕过我们的内置消毒器。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

厂商已发布了漏洞修复程序，请及时关注更新： https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/

Reference

https://vigilance.fr/vulnerability/Firefox-Thunderbird-multiple-vulnerabilities-33912

Impacted products

Name
mozilla Mozilla Firefox

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-26951",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-26951"
    }
  },
  "description": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\n\nFireFox \u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eSVG\u4ee3\u7801\u4e2d\u7684\u89e3\u6790\u548c\u4e8b\u4ef6\u52a0\u8f7d\u4e0d\u5339\u914d\u53ef\u80fd\u5bfc\u81f4\u52a0\u8f7d\u4e8b\u4ef6\u88ab\u89e6\u53d1\uff0c\u5373\u4f7f\u5728\u6e05\u9664\u4e4b\u540e\u4e5f\u662f\u5982\u6b64\u3002\u5df2\u7ecf\u80fd\u591f\u5229\u7528\u7279\u6743\u5185\u90e8\u9875\u9762\u4e2d\u7684XSS\u6f0f\u6d1e\u7684\u653b\u51fb\u8005\u53ef\u80fd\u5df2\u7ecf\u4f7f\u7528\u6b64\u653b\u51fb\u6765\u7ed5\u8fc7\u6211\u4eec\u7684\u5185\u7f6e\u6d88\u6bd2\u5668\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-51/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-65141",
  "openTime": "2020-11-19",
  "patchDescription": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\r\n\r\nFireFox \u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eSVG\u4ee3\u7801\u4e2d\u7684\u89e3\u6790\u548c\u4e8b\u4ef6\u52a0\u8f7d\u4e0d\u5339\u914d\u53ef\u80fd\u5bfc\u81f4\u52a0\u8f7d\u4e8b\u4ef6\u88ab\u89e6\u53d1\uff0c\u5373\u4f7f\u5728\u6e05\u9664\u4e4b\u540e\u4e5f\u662f\u5982\u6b64\u3002\u5df2\u7ecf\u80fd\u591f\u5229\u7528\u7279\u6743\u5185\u90e8\u9875\u9762\u4e2d\u7684XSS\u6f0f\u6d1e\u7684\u653b\u51fb\u8005\u53ef\u80fd\u5df2\u7ecf\u4f7f\u7528\u6b64\u653b\u51fb\u6765\u7ed5\u8fc7\u6211\u4eec\u7684\u5185\u7f6e\u6d88\u6bd2\u5668\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\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08 CNVD-2020-65141\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "mozilla Mozilla Firefox"
  },
  "referenceLink": "https://vigilance.fr/vulnerability/Firefox-Thunderbird-multiple-vulnerabilities-33912",
  "serverity": "\u4e2d",
  "submitTime": "2020-11-18",
  "title": "Mozilla Firefox\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08 CNVD-2020-65141\uff09"
}

CVE-2020-26951 (GCVE-0-2020-26951)

Vulnerability from cvelistv5 – Published: 2020-12-09 00:19 – Updated: 2024-08-04 16:03

Summary

A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Severity

No CVSS data available.

CWE

Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code

Assigner

mozilla mitre root

References

4 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1667113	x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_CONFIRM
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_CONFIRM
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_CONFIRM

Impacted products

3 products

Vendor	Product	Version
Mozilla	Firefox	Affected: < 83
Mozilla	Firefox ESR	Affected: < 78.5
Mozilla	Thunderbird	Affected: < 78.5

Show details on NVD website

JSON

To clipboard

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            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1667113"
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          },
          {
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            ],
            "url": "https://www.mozilla.org/security/advisories/mfsa2020-52/"
          },
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      }
    ],
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            }
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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.

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.

Action not permitted

CNVD-2020-65141

CVE-2020-26951 (GCVE-0-2020-26951)

Tags

Sightings

Nomenclature

Related by attack behaviour