CVE-2021-36934

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-36934
<p>An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>An attacker must have the ability to execute code on a victim system to exploit this vulnerability.</p> <p>After installing this security update, you <em>must</em> manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. <strong>Simply installing this security update will not fully mitigate this vulnerability.</strong> See <a href="https://support.microsoft.com/topic/1ceaa637-aaa3-4b58-a48b-baf72a2fa9e7">KB5005357- Delete Volume Shadow Copies</a>.</p>

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36934 Patch Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
History

24 Jul 2024, 16:48

Type Values Removed Values Added
CPE cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*		 cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
First Time Microsoft windows 10 1909
Microsoft windows 10 21h1
Microsoft windows 10 20h2
Microsoft windows 10 1809
Microsoft windows 10 2004

28 Dec 2023, 23:15

Type Values Removed Values Added
Summary Windows Elevation of Privilege Vulnerability <p>An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>An attacker must have the ability to execute code on a victim system to exploit this vulnerability.</p> <p>After installing this security update, you <em>must</em> manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. <strong>Simply installing this security update will not fully mitigate this vulnerability.</strong> See <a href="https://support.microsoft.com/topic/1ceaa637-aaa3-4b58-a48b-baf72a2fa9e7">KB5005357- Delete Volume Shadow Copies</a>.</p>

08 Aug 2023, 14:22

Type Values Removed Values Added
CWE CWE-732 NVD-CWE-Other

12 Jul 2022, 17:42

Type Values Removed Values Added
CWE CWE-269 CWE-732

18 Oct 2021, 12:55

Type Values Removed Values Added
References (MISC) http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html - (MISC) http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html - Third Party Advisory, VDB Entry

01 Sep 2021, 18:15

Type Values Removed Values Added
References
  • (MISC) http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html -

30 Jul 2021, 18:29

Type Values Removed Values Added
References (N/A) https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36934 - (N/A) https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36934 - Patch, Vendor Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 4.6
v3 : 7.8
CWE CWE-269
CPE cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*

22 Jul 2021, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-07-22 07:15

Updated : 2024-07-24 16:48

NVD link : CVE-2021-36934

Mitre link : CVE-2021-36934

CVE.ORG link : CVE-2021-36934

JSON object : View

Products Affected

microsoft

  • windows_10_20h2
  • windows_10_1809
  • windows_10_2004
  • windows_10_21h1
  • windows_10_1909
CWE
NVD-CWE-Other