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CNVD-2021-84581

Vulnerability from cnvd - Published: 2021-11-05
VLAI
Title
MediaWiki权限许可和访问控制问题漏洞(CNVD-2021-84581)
Description
MediaWiki是美国维基媒体(MediaWiki)基金会的一套自由免费的基于网络的Wiki引擎。该产品可用于部署内部的知识管理和内容管理系统。 Mediawiki 存在权限许可和访问控制问题漏洞,该漏洞源于应用程序在执行作业时未正确检查权限。攻击者可利用该漏洞绕过安全检查。
Severity
Patch Name
MediaWiki权限许可和访问控制问题漏洞(CNVD-2021-84581)的补丁
Patch Description
MediaWiki是美国维基媒体(MediaWiki)基金会的一套自由免费的基于网络的Wiki引擎。该产品可用于部署内部的知识管理和内容管理系统。 Mediawiki 存在权限许可和访问控制问题漏洞,该漏洞源于应用程序在执行作业时未正确检查权限。攻击者可利用该漏洞绕过安全检查。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.debian.org/security/2021/dsa-4979

Reference
https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/, https://phabricator.wikimedia.org/T279090
Impacted products
Name
['MediaWiki MediaWiki <1.31.16', 'MediaWiki MediaWiki >=1.35.0,<1.35.4', 'MediaWiki MediaWiki >=1.36.0,<1.36.2']
Show details on source website

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-41801",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-41801"
    }
  },
  "description": "MediaWiki\u662f\u7f8e\u56fd\u7ef4\u57fa\u5a92\u4f53\uff08MediaWiki\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u81ea\u7531\u514d\u8d39\u7684\u57fa\u4e8e\u7f51\u7edc\u7684Wiki\u5f15\u64ce\u3002\u8be5\u4ea7\u54c1\u53ef\u7528\u4e8e\u90e8\u7f72\u5185\u90e8\u7684\u77e5\u8bc6\u7ba1\u7406\u548c\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\u3002 \n\nMediawiki \u5b58\u5728\u6743\u9650\u8bb8\u53ef\u548c\u8bbf\u95ee\u63a7\u5236\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5e94\u7528\u7a0b\u5e8f\u5728\u6267\u884c\u4f5c\u4e1a\u65f6\u672a\u6b63\u786e\u68c0\u67e5\u6743\u9650\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u68c0\u67e5\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.debian.org/security/2021/dsa-4979",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-84581",
  "openTime": "2021-11-05",
  "patchDescription": "MediaWiki\u662f\u7f8e\u56fd\u7ef4\u57fa\u5a92\u4f53\uff08MediaWiki\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u81ea\u7531\u514d\u8d39\u7684\u57fa\u4e8e\u7f51\u7edc\u7684Wiki\u5f15\u64ce\u3002\u8be5\u4ea7\u54c1\u53ef\u7528\u4e8e\u90e8\u7f72\u5185\u90e8\u7684\u77e5\u8bc6\u7ba1\u7406\u548c\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\u3002 \r\n\r\nMediawiki \u5b58\u5728\u6743\u9650\u8bb8\u53ef\u548c\u8bbf\u95ee\u63a7\u5236\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5e94\u7528\u7a0b\u5e8f\u5728\u6267\u884c\u4f5c\u4e1a\u65f6\u672a\u6b63\u786e\u68c0\u67e5\u6743\u9650\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u68c0\u67e5\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": "MediaWiki\u6743\u9650\u8bb8\u53ef\u548c\u8bbf\u95ee\u63a7\u5236\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-84581\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "MediaWiki MediaWiki \u003c1.31.16",
      "MediaWiki MediaWiki \u003e=1.35.0\uff0c\u003c1.35.4",
      "MediaWiki MediaWiki \u003e=1.36.0\uff0c\u003c1.36.2"
    ]
  },
  "referenceLink": "https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/, https://phabricator.wikimedia.org/T279090",
  "serverity": "\u4e2d",
  "submitTime": "2021-11-01",
  "title": "MediaWiki\u6743\u9650\u8bb8\u53ef\u548c\u8bbf\u95ee\u63a7\u5236\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-84581\uff09"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.

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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.


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