CVE-2020-16940
Windows - User Profile Service Elevation of Privilege Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
<p>An elevation of privilege vulnerability exists when the Windows User Profile Service (ProfSvc) improperly handles junction points. An attacker who successfully exploited this vulnerability could delete files and folders in an elevated context.</p>
<p>To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and delete files or folders of their choosing.</p>
<p>The security update addresses the vulnerability by correcting how the Windows User Profile Service handles junction points.</p>
Se presenta una vulnerabilidad de escalada de privilegios cuando Windows User Profile Service (ProfSvc) maneja inapropiadamente puntos de unión, también se conoce como "Windows - User Profile Service Elevation of Privilege Vulnerability"
This vulnerability allows local attackers to delete arbitrary files on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within handling of the local registry hive by the User Profile service. By creating a junction, an attacker can abuse the service to delete files in an incorrect location. An attacker can leverage this vulnerability to delete files in the context of SYSTEM.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-08-04 CVE Reserved
- 2020-10-16 CVE Published
- 2024-08-04 CVE Updated
- 2024-10-09 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-269: Improper Privilege Management
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-20-1248 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16940 | 2023-12-31 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | - | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1607 Search vendor "Microsoft" for product "Windows 10" and version "1607" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1709 Search vendor "Microsoft" for product "Windows 10" and version "1709" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1803 Search vendor "Microsoft" for product "Windows 10" and version "1803" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1809 Search vendor "Microsoft" for product "Windows 10" and version "1809" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1903 Search vendor "Microsoft" for product "Windows 10" and version "1903" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1909 Search vendor "Microsoft" for product "Windows 10" and version "1909" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 2004 Search vendor "Microsoft" for product "Windows 10" and version "2004" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 7 Search vendor "Microsoft" for product "Windows 7" | - | sp1 |
Affected
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| Microsoft Search vendor "Microsoft" | Windows 8.1 Search vendor "Microsoft" for product "Windows 8.1" | - | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Rt 8.1 Search vendor "Microsoft" for product "Windows Rt 8.1" | - | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | - | sp2 |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2" | sp1, x64 |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012" | - | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012" | r2 Search vendor "Microsoft" for product "Windows Server 2012" and version "r2" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | - | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | 1903 Search vendor "Microsoft" for product "Windows Server 2016" and version "1903" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | 1909 Search vendor "Microsoft" for product "Windows Server 2016" and version "1909" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | 2004 Search vendor "Microsoft" for product "Windows Server 2016" and version "2004" | - |
Affected
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| Microsoft Search vendor "Microsoft" | Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019" | - | - |
Affected
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