Attacker Value
Very High
(1 user assessed)
Exploitability
Very High
(1 user assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
4

CVE-2023-21752

Disclosure Date: January 10, 2023
Add MITRE ATT&CK tactics and techniques that apply to this CVE.
Execution
Techniques
Validation
Validated
Validated
Validated

Description

Windows Backup Service Elevation of Privilege Vulnerability

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2
Ratings
Technical Analysis

CVE-2023-21752 – Windows Backup service – Privilege Escalation

Description:

Windows 11 Pro build 10.0.22000 Build 22000 suffers from Backup service – Privilege Escalation vulnerability.
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges
and could delete data that could include data that results in the service being unavailable.

STATUS: HIGH Vulnerability – CRITICAL

[+] Exploit:

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Reproduce:

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Proof and Exploit:

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Reference:

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FAQ from Microsoft

What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
According to the CVSS metrics, successful exploitation of this vulnerability could lead to no loss of confidentiality (C:N) but have major impact on integrity (I:H) and on availability (A:H). What does that mean for this vulnerability?
This vulnerability does not allow disclosure of any confidential information, but could allow an attacker to delete data that could include data that results in the service being unavailable.

RPC

Remote procedure call (RPC)

Affected Releases:

Jan 10, 2023
Windows 10 Version 1809 for 32-bit Systems
-
Elevation of Privilege
Important
5022286 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 20H2 for ARM64-based Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 20H2 for 32-bit Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 20H2 for x64-based Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 11 Version 22H2 for x64-based Systems
-
Elevation of Privilege
Important
5022303 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 21H2 for x64-based Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 22H2 for x64-based Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 21H2 for 32-bit Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 11 version 21H2 for ARM64-based Systems
-
Elevation of Privilege
Important
5022287 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 11 version 21H2 for x64-based Systems
-
Elevation of Privilege
Important
5022287 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 21H2 for ARM64-based Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 22H2 for 32-bit Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 11 Version 22H2 for ARM64-based Systems
-
Elevation of Privilege
Important
5022303 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 22H2 for ARM64-based Systems
-
Elevation of Privilege
Important
5022282 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 7 for 32-bit Systems Service Pack 1
-
Elevation of Privilege
Important
5022338 
5022339 
Monthly Rollup 
Security Only 
CVE-2023-21752
Jan 10, 2023
Windows 10 for 32-bit Systems
-
Elevation of Privilege
Important
5022297 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 1607 for x64-based Systems
-
Elevation of Privilege
Important
5022289 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 for x64-based Systems
-
Elevation of Privilege
Important
5022297 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 7 for x64-based Systems Service Pack 1
-
Elevation of Privilege
Important
5022338 
5022339 
Monthly Rollup 
Security Only 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 1809 for x64-based Systems
-
Elevation of Privilege
Important
5022286 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 1607 for 32-bit Systems
-
Elevation of Privilege
Important
5022289 
Security Update 
CVE-2023-21752
Jan 10, 2023
Windows 10 Version 1809 for ARM64-based Systems
-
Elevation of Privilege
Important
5022286 
Security Update 
CVE-2023-21752
CVSS V3 Severity and Metrics
Base Score:
7.1 High
Impact Score:
5.2
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • microsoft

Products

  • windows 10 -,
  • windows 10 1607,
  • windows 10 1809,
  • windows 10 20h2,
  • windows 10 21h2,
  • windows 10 22h2,
  • windows 11 -,
  • windows 11 21h2,
  • windows 11 22h2,
  • windows 7 -

Additional Info

Technical Analysis