Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 | - |
| Microsoft | Windows 7 | - |
| Microsoft | Windows 8.1 | - |
| Microsoft | Windows Rt 8.1 | - |
| Microsoft | Windows Server 2008 | - |
| Microsoft | Windows Server 2012 | - |
| Microsoft | Windows Server 2016 | - |
| Microsoft | Windows Server 2019 | - |
Related Weaknesses (CWE)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1112
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1112PatchVendor Advisory
FAQ
What is CVE-2020-1112?
CVE-2020-1112 is a vulnerability with a CVSS score of 8.5 (HIGH). 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 th...
How severe is CVE-2020-1112?
CVE-2020-1112 has been rated HIGH with a CVSS base score of 8.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-1112?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008.