CVE-2021-43893

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-43893
Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:S/C:P/I:P/A:P

Exploitability : 6.8 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
http://packetstormsecurity.com/files/165560/Microsoft-Windows-EFSRPC-Arbitrary-File-Upload-Privilege-Escalation.html Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43893 Patch Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server:20h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server:2022:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp2:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp2:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
History

12 Jul 2022, 17:42

Type Values Removed Values Added
CWE CWE-269 CWE-668

23 May 2022, 17:42

Type Values Removed Values Added
CPE cpe:2.3:o:microsoft:windows_server:2004:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*

04 Apr 2022, 14:27

Type Values Removed Values Added
References (MISC) http://packetstormsecurity.com/files/165560/Microsoft-Windows-EFSRPC-Arbitrary-File-Upload-Privilege-Escalation.html - (MISC) http://packetstormsecurity.com/files/165560/Microsoft-Windows-EFSRPC-Arbitrary-File-Upload-Privilege-Escalation.html - Third Party Advisory, VDB Entry

13 Jan 2022, 19:15

Type Values Removed Values Added
References
  • (MISC) http://packetstormsecurity.com/files/165560/Microsoft-Windows-EFSRPC-Arbitrary-File-Upload-Privilege-Escalation.html -

23 Dec 2021, 19:28

Type Values Removed Values Added
CWE CWE-269
References (MISC) https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43893 - (MISC) https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43893 - Patch, Vendor Advisory
CPE cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_server:2004:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp2:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp2:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server:2022:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server:20h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:*
CVSS v2 : unknown
v3 : unknown 		v2 : 6.0
v3 : 7.5

15 Dec 2021, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-12-15 15:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-43893

Mitre link : CVE-2021-43893

CVE.ORG link : CVE-2021-43893

JSON object : View

Products Affected

microsoft

  • windows_server_2016
  • windows_8.1
  • windows_server_2019
  • windows_server_2008
  • windows_10
  • windows_server
  • windows_11
  • windows_rt_8.1
  • windows_server_2012
  • windows_7
CWE
CWE-668

Exposure of Resource to Wrong Sphere