CVE-2021-43893
published 2021-12-15CVE-2021-43893: Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability
PriorityP347high7.5CVSS 3.1
AVNACHPRLUINSUCHIHAH
EPSS
6.62%
93.1th percentile
Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability
Affected
52 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1507 | >= 10.0.0 < 10.0.10240.19145 | 10.0.10240.19145 |
| microsoft | windows_10_version_1607 | >= 10.0.0 < 10.0.14393.4825 | 10.0.14393.4825 |
| microsoft | windows_10_version_1809 | >= 10.0.0 < 10.0.17763.2366 | 10.0.17763.2366 |
| microsoft | windows_10_version_1909 | >= 10.0.0 < 10.0.18363.1977 | 10.0.18363.1977 |
| microsoft | windows_10_version_2004 | >= 10.0.0 < 10.0.19041.1415 | 10.0.19041.1415 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19042.1415 | 10.0.19042.1415 |
| microsoft | windows_10_version_21h1 | >= 10.0.0 < 10.0.19043.1415 | 10.0.19043.1415 |
| microsoft | windows_10_version_21h2 | >= 10.0.0 < 10.0.19044.1415 | 10.0.19044.1415 |
| microsoft | windows_11_version_21h2 | >= 10.0.0 < 10.0.22000.376 | 10.0.22000.376 |
| microsoft | windows_7 | >= 6.1.0 < 6.1.7601.25796 | 6.1.7601.25796 |
| microsoft | windows_7_service_pack_1 | >= 6.1.0 < 6.1.7601.25796 | 6.1.7601.25796 |
| microsoft | windows_8.1 | >= 6.3.0 < 6.3.9600.20207 | 6.3.9600.20207 |
| microsoft | windows_server | — | — |
| microsoft | windows_server | — | — |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.0.0 < 6.1.7601.25796 | 6.1.7601.25796 |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.0 < 6.1.7601.25796 | 6.1.7601.25796 |
| microsoft | windows_server_2008_service_pack_2 | >= 6.0.0 < 6.0.6003.21309 | 6.0.6003.21309 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.0MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:P
vendor_msrc7.5HIGH
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Microsoft
Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability
vendor_msrc·2021-12-14·CVSS 7.5
CVE-2021-43893 [HIGH] Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability
Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability
Windows Encrypting File System (EFS): Windows Encrypting File System (EFS)
Microsoft: Microsoft
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:Yes;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5008218
Reference: https://support.microsoft.com/help/5008218
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5008206
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5008212
Reference: https://support.microsoft.com/help/5008212
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5008223
Ref
GHSA
GHSA-jx9r-hrmg-9q76: Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability
ghsa_unreviewed·2021-12-16
CVE-2021-43893 [HIGH] CWE-269 GHSA-jx9r-hrmg-9q76: Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability
Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://packetstormsecurity.com/files/165560/Microsoft-Windows-EFSRPC-Arbitrary-File-Upload-Privilege-Escalation.htmlhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43893http://packetstormsecurity.com/files/165560/Microsoft-Windows-EFSRPC-Arbitrary-File-Upload-Privilege-Escalation.htmlhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43893
2021-12-15
Published