CVE-2020-1112
Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability
HIGH 8.5
At a glance
- Source
- NVD
- EPSS
- EPSS 3.29 % · percentile 88 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-434 — Unrestricted Upload of File with Dangerous Type
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · secure@microsoft.com (Primary) |
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · nvd@nist.gov (Secondary) |
| CVSS 2.0 | HIGH 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-11999
- GCVE · GCVE-0-2020-1112
CERT-FR advisories
- CERTFR-2020-AVI-287 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:itanium:*cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Affected products
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |