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CVE-2021-28310— Win32k Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1803
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 Win32k是美国微软（Microsoft）公司的一个用于Windows多用户管理的系统文件。 Microsoft Win32k 存在缓冲区错误漏洞。该漏洞源于win32k内的边界错误。该漏洞允许本地用户运行一个专门设计的程序来触发内存损坏，并以更高的权限执行任意代码。

CVSS 7.8 · High KEV EPSS 8.40% · P95

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-28310

Vulnerability Information
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Vulnerability Title
Win32k Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Win32k 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 Win32k 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Win32k是美国微软（Microsoft）公司的一个用于Windows多用户管理的系统文件。 Microsoft Win32k 存在缓冲区错误漏洞。该漏洞源于win32k内的边界错误。该漏洞允许本地用户运行一个专门设计的程序来触发内存损坏，并以更高的权限执行任意代码。
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 10 Version 1803 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
Microsoft Windows 10 Version 1809 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
Microsoft Windows Server 2019 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
Microsoft Windows Server 2019 (Server Core installation) 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
Microsoft Windows 10 Version 1909 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*
Microsoft Windows Server, version 1909 (Server Core installation) 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*
Microsoft Windows 10 Version 2004 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
Microsoft Windows Server version 2004 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
Microsoft Windows 10 Version 20H2 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:x86:*
Microsoft Windows Server version 20H2 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_server_20H2:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2021-28310

# POC Description Source Link Shenlong Link
1 Malicious Payloads that abuses Win32k Elevation of Privilege Vulnerability (CVE-2021-28310) https://github.com/Rafael-Svechinskaya/IOC_for_CVE-2021-28310 POC Details
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III. Intelligence Information for CVE-2021-28310

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Vendor Advisories for CVE-2021-28310 (1)

Same Patch Batch · Microsoft · 2021-04-13 · 108 CVEs total

CVE-2021-28481 9.8 CRITICAL Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28480 9.8 CRITICAL Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28483 9.0 CRITICAL Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28327 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28345 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28329 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28330 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28331 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28332 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28333 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28334 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28335 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28336 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28337 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28338 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28339 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28340 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28356 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28357 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28358 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability

Showing top 20 of 108 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1803
Same vendor: Microsoft

V. Comments for CVE-2021-28310

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