Description
An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) IIS module improperly handles uploaded content. An attacker who successfully exploited this vulnerability could upload restricted file types to an IIS-hosted folder. To exploit this vulnerability, an attacker would require permissions to upload files via BITS. An attacker could then submit a specially crafted request to upload a file. The security update addresses the vulnerability by correcting how Windows BITS validates file names.
Metrics
CVSS 3.1 8.5/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1507 | >= 10.0.10240.0, < publication |
| Microsoft | Windows 10 Version 1607 | >= 10.0.14393.0, < publication |
| Microsoft | Windows 10 Version 1709 | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1803 | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1809 | >= 10.0.17763.0, < publication |
| Microsoft | Windows 10 Version 1809 | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1909 | >= 10.0.0, < publication |
| Microsoft | Windows 7 | >= 6.1.0, < publication |
| Microsoft | Windows 7 Service Pack 1 | >= 6.1.0, < publication |
| Microsoft | Windows 8.1 | >= 6.3.0, < publication |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | >= 6.1.7601.0, < publication |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | >= 6.1.7601.0, < publication |
| Microsoft | Windows Server 2008 Service Pack 2 | >= 6.0.6003.0, < publication |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | >= 6.0.6003.0, < publication |
| Microsoft | Windows Server 2012 | >= 6.2.9200.0, < publication |
| Microsoft | Windows Server 2012 (Server Core installation) | >= 6.2.9200.0, < publication |
| Microsoft | Windows Server 2012 R2 | >= 6.3.9600.0, < publication |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | >= 6.3.9600.0, < publication |
| Microsoft | Windows Server 2016 | >= 10.0.14393.0, < publication |
| Microsoft | Windows Server 2016 (Server Core installation) | >= 10.0.14393.0, < publication |
| Microsoft | Windows Server 2019 | >= 10.0.17763.0, < publication |
| Microsoft | Windows Server 2019 (Server Core installation) | >= 10.0.17763.0, < publication |
| Microsoft | Windows Server, version 1803 (Server Core Installation) | >= 10.0.0, < publication |
| Microsoft | Windows Server, version 1903 (Server Core installation) | >= 10.0.0, < publication |
| Microsoft | Windows Server, version 1909 (Server Core installation) | >= 10.0.0, < publication |
References
Timeline
- Published
- May 21, 2020
- Last modified
- Aug 19, 2026
- NVD status
- Modified