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CVE-2021-34445— Windows Remote Access Connection Manager Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1809
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows Remote Access Connection Manager是美国微软（Microsoft）公司的一项 Windows 服务，用于管理从您的计算机到 Internet 的虚拟专用网络 (VPN)连接，如果禁用此服务，我们的 VPN 客户端应用程序将无法启动。 Microsoft Windows Remote Access Connection Manager 存在权限许可和访问控制问题漏洞。以下产品和版本受到影响：Windows 10 Version 1809 fo

CVSS 7.8 · High EPSS 0.64% · P48

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 10

VendorProduct Version RangeStatus
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.2061 affected
10.0.0< 10.0.17763.2061 affected
Microsoft Windows 10 Version 1909 10.0.0< 10.0.18363.1679 affected
Microsoft Windows 10 Version 2004 10.0.0< 10.0.19041.1110 affected
Microsoft Windows 10 Version 20H2 10.0.0< 10.0.19042.1110 affected
Microsoft Windows 10 Version 21H1 10.0.0< 10.0.19043.1110 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.2061 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.2061 affected
Microsoft Windows Server version 2004 10.0.0< 10.0.19041.1110 affected
Microsoft Windows Server version 20H2 10.0.0< 10.0.19042.1110 affected
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I. Basic Information for CVE-2021-34445

Vulnerability Information
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Vulnerability Title
Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Remote Access Connection Manager 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Remote Access Connection Manager是美国微软（Microsoft）公司的一项 Windows 服务，用于管理从您的计算机到 Internet 的虚拟专用网络 (VPN)连接，如果禁用此服务，我们的 VPN 客户端应用程序将无法启动。 Microsoft Windows Remote Access Connection Manager 存在权限许可和访问控制问题漏洞。以下产品和版本受到影响：Windows 10 Version 1809 fo
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.2061 -
Microsoft Windows 10 Version 1809 10.0.0 ~ 10.0.17763.2061 -
Microsoft Windows 10 Version 1909 10.0.0 ~ 10.0.18363.1679 -
Microsoft Windows 10 Version 2004 10.0.0 ~ 10.0.19041.1110 -
Microsoft Windows 10 Version 20H2 10.0.0 ~ 10.0.19042.1110 -
Microsoft Windows 10 Version 21H1 10.0.0 ~ 10.0.19043.1110 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.2061 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.2061 -
Microsoft Windows Server version 2004 10.0.0 ~ 10.0.19041.1110 -
Microsoft Windows Server version 20H2 10.0.0 ~ 10.0.19042.1110 -

II. Public POCs for CVE-2021-34445

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III. Intelligence Information for CVE-2021-34445

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Vendor Advisories for CVE-2021-34445 (1)

Same Patch Batch · Microsoft · 2021-07-16 · 27 CVEs total

CVE-2021-34458 9.9 CRITICAL Windows Kernel Remote Code Execution Vulnerability
CVE-2021-34442 8.8 HIGH Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-34481 8.8 HIGH Windows Print Spooler Remote Code Execution Vulnerability
CVE-2021-34450 8.5 HIGH Windows Hyper-V Remote Code Execution Vulnerability
CVE-2021-34446 8.0 HIGH Windows HTML Platforms Security Feature Bypass Vulnerability
CVE-2021-34452 7.8 HIGH Microsoft Word Remote Code Execution Vulnerability
CVE-2021-34438 7.8 HIGH Windows Font Driver Host Remote Code Execution Vulnerability
CVE-2021-34439 7.8 HIGH Microsoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2021-34441 7.8 HIGH Microsoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2021-34455 7.8 HIGH Windows File History Service Elevation of Privilege Vulnerability
CVE-2021-34456 7.8 HIGH Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
CVE-2021-34459 7.8 HIGH Windows AppContainer Elevation Of Privilege Vulnerability
CVE-2021-34460 7.8 HIGH Windows Storage Spaces Controller Elevation of Privilege Vulnerability
CVE-2021-34461 7.8 HIGH Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability
CVE-2021-34464 7.8 HIGH Microsoft Defender Remote Code Execution Vulnerability
CVE-2021-34467 7.1 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2021-34449 7.0 HIGH Win32k Elevation of Privilege Vulnerability
CVE-2021-34462 7.0 HIGH Windows AppX Deployment Extensions Elevation of Privilege Vulnerability
CVE-2021-34448 6.8 MEDIUM Scripting Engine Memory Corruption Vulnerability
CVE-2021-34447 6.8 MEDIUM Windows MSHTML Platform Remote Code Execution Vulnerability

Showing top 20 of 27 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1809
Same vendor: Microsoft

V. Comments for CVE-2021-34445

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