Dangerous file upload in Microsoft Dynamics 365 for Finance and Operations
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-16857 |
| CWE-ID | CWE-434 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Microsoft Dynamics 365 for Finance and Operations (on-premises) Web applications / CRM systems |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Arbitrary file upload
EUVDB-ID: #VU46494
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-16857
CWE-ID:
CWE-434 - Unrestricted Upload of File with Dangerous Type
Exploit availability: No
DescriptionThe vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload. A remote user with privileges to import and export data can upload a malicious file and execute it on the server.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMicrosoft Dynamics 365 for Finance and Operations (on-premises): 10.0.11
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16857
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
