Vulnerability-Lookup

CNVD-2021-57182

Vulnerability from cnvd - Published: 2021-08-01

Title

Microsoft Windows访问控制错误漏洞

Description

Microsoft Windows是美国微软（Microsoft）公司的一套个人设备使用的操作系统。 Microsoft Windows存在访问控制错误漏洞，该漏洞源于系统对多个系统文件的访问控制列表过于宽松，因此存在特权提升漏洞。攻击者可利用该漏洞使用SYSTEM权限运行任意代码。

Severity

中

Patch Name

Microsoft Windows访问控制错误漏洞的补丁

Patch Description

Microsoft Windows是美国微软（Microsoft）公司的一套个人设备使用的操作系统。 Microsoft Windows存在访问控制错误漏洞，该漏洞源于系统对多个系统文件的访问控制列表过于宽松，因此存在特权提升漏洞。攻击者可利用该漏洞使用SYSTEM权限运行任意代码。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://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36934。

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-36934

Impacted products

Name
['Microsoft Windows 10 1809', 'Microsoft Windows 10 1909', 'Microsoft Windows 10 2004', 'Microsoft Windows 10 20H2', 'Microsoft Windows 10 21H1']

Show details on source website

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    "cve": {
      "cveNumber": "CVE-2021-36934"
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  "submitTime": "2021-07-23",
  "title": "Microsoft Windows\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-36934 (GCVE-0-2021-36934)

Vulnerability from cvelistv5 – Published: 2021-07-22 07:05 – Updated: 2026-08-10 15:11

Title

Windows Elevation of Privilege Vulnerability

Summary

An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. An attacker must have the ability to execute code on a victim system to exploit this vulnerability. After installing this security update, you must manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. Simply installing this security update will not fully mitigate this vulnerability. See KB5005357- Delete Volume Shadow Copies.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:T/RC:C

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-04 18:15 UTC

CWE

Elevation of Privilege
CWE-noinfo Not enough information

Assigner

microsoft mitre root

References

5 references

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerabi…	vendor-advisorypatch
https://www.kb.cert.org/vuls/id/506989
https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_MISCx_transferred
http://packetstormsecurity.com/files/164006/HiveN…	x_refsource_MISCx_transferred
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

6 products

Vendor	Product	Version
Microsoft	Windows 10 Version 1809	Affected: 10.0.17763.0 , < 10.0.17763.2114 (custom)
Microsoft	Windows 10 Version 1809	Affected: 10.0.0 , < 10.0.17763.2114 (custom)
Microsoft	Windows 10 Version 1909	Affected: 10.0.0 , < 10.0.18363.1734 (custom)
Microsoft	Windows 10 Version 2004	Affected: 10.0.0 , < 10.0.19041.1165 (custom)
Microsoft	Windows 10 Version 20H2	Affected: 10.0.0 , < 10.0.19042.1165 (custom)
Microsoft	Windows 10 Version 21H1	Affected: 10.0.0 , < 10.0.19043.1165 (custom)

Date Public

2021-07-20 14:00

Show details on NVD website

JSON

To clipboard

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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.