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CVE-2021-42287— Active Directory Domain Services Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows Server 2008 R2 Service Pack 1
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows Active Directory是美国微软（Microsoft）公司的一个负责架构中大型网络环境的集中式目录管理服务。存储有关网络上对象的信息，并使管理员和用户可以轻松查找和使用这些信息。 Microsoft Windows Active Directory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 Server 2019,Windows Server 2019 (Server Core installation),Windows Serve

CVSS 7.5 · High KEV · Ransomware EPSS 76.11% · P99

Possible ATT&CK Techniques 1 AI

T1136.003 · Cloud Account

Affected Version Matrix 15

VendorProduct Version RangeStatus
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0< 6.1.7601.25769 affected
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0< 6.1.7601.25769 affected
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0< 6.0.6003.21282 affected
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0< 6.0.6003.21282 affected
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.23517 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.23517 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.20174 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.20174 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.4770 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.4770 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.2300 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.2300 affected
Microsoft Windows Server 2022 10.0.20348.0< 10.0.20348.350 affected
Microsoft Windows Server version 2004 10.0.0< 10.0.19041.1348 affected
Microsoft Windows Server version 20H2 10.0.0< 10.0.19041.1348 affected
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I. Basic Information for CVE-2021-42287

Vulnerability Information
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Vulnerability Title
Active Directory Domain Services Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Active Directory Domain Services Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/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 Active Directory 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Active Directory是美国微软（Microsoft）公司的一个负责架构中大型网络环境的集中式目录管理服务。存储有关网络上对象的信息，并使管理员和用户可以轻松查找和使用这些信息。 Microsoft Windows Active Directory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 Server 2019,Windows Server 2019 (Server Core installation),Windows Serve
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.25769 -
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ 6.1.7601.25769 -
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.21282 -
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 ~ 6.0.6003.21282 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.23517 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.23517 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.20174 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.20174 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.4770 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.4770 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.2300 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.2300 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.350 -
Microsoft Windows Server version 2004 10.0.0 ~ 10.0.19041.1348 -
Microsoft Windows Server version 20H2 10.0.0 ~ 10.0.19041.1348 -

II. Public POCs for CVE-2021-42287

# POC Description Source Link Shenlong Link
1 CVE-2021-42287/CVE-2021-42278 Scanner & Exploiter. https://github.com/cube0x0/noPac POC Details
2 .Net Assembly loader for the [CVE-2021-42287 - CVE-2021-42278] Scanner & Exploit noPac https://github.com/ricardojba/Invoke-noPac POC Details
3 NoPacScan is a CVE-2021-42287/CVE-2021-42278 Scanner,it scan for more domain controllers than other script https://github.com/knightswd/NoPacScan POC Details
4 CVE-2021-42287/CVE-2021-42278 exploits in powershell https://github.com/XiaoliChan/Invoke-sAMSpoofing POC Details
5 CVE-2021-42287/CVE-2021-42278 Exploiter https://github.com/TryA9ain/noPac POC Details
6 CVE-2021-42287/CVE-2021-42278/OTHER Scanner & Exploiter. https://github.com/DanielFEXKEX/CVE-Scanner POC Details
7 CVE-2021-42287/CVE-2021-42278/OTHER Scanner & Exploiter. https://github.com/Chrisync/CVE-Scanner POC Details
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III. Intelligence Information for CVE-2021-42287

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Vendor Advisories for CVE-2021-42287 (2)

Same Patch Batch · Microsoft · 2021-11-10 · 54 CVEs total

CVE-2021-26443 9.0 CRITICAL Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability
CVE-2021-38666 8.8 HIGH Remote Desktop Client Remote Code Execution Vulnerability
CVE-2021-42321 8.8 HIGH Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-42316 8.8 HIGH Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
CVE-2021-42283 8.8 HIGH NTFS Elevation of Privilege Vulnerability
CVE-2021-42275 8.8 HIGH Microsoft COM for Windows Remote Code Execution Vulnerability
CVE-2021-42322 7.8 HIGH Visual Studio Code Elevation of Privilege Vulnerability
CVE-2021-43208 7.8 HIGH 3D Viewer Remote Code Execution Vulnerability
CVE-2021-42298 7.8 HIGH Microsoft Defender Remote Code Execution Vulnerability
CVE-2021-42296 7.8 HIGH Microsoft Word Remote Code Execution Vulnerability
CVE-2021-42286 7.8 HIGH Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege
CVE-2021-42285 7.8 HIGH Windows Kernel Elevation of Privilege Vulnerability
CVE-2021-42276 7.8 HIGH Microsoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2021-41378 7.8 HIGH Windows NTFS Remote Code Execution Vulnerability
CVE-2021-41377 7.8 HIGH Windows Fast FAT File System Driver Elevation of Privilege Vulnerability
CVE-2021-41370 7.8 HIGH NTFS Elevation of Privilege Vulnerability
CVE-2021-41367 7.8 HIGH NTFS Elevation of Privilege Vulnerability
CVE-2021-41366 7.8 HIGH Credential Security Support Provider Protocol (CredSSP) Elevation of Privilege Vulnerabili
CVE-2021-40442 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2021-36957 7.8 HIGH Windows Desktop Bridge Elevation of Privilege Vulnerability

Showing top 20 of 54 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows Server 2008 R2 Service Pack 1
Same vendor: Microsoft

V. Comments for CVE-2021-42287

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