Vulnerability identifier: #VU6542

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-0249

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ASP.NET Core MVC
Universal components / Libraries / Software for developers

Vendor: Microsoft

Description
The vulnerability allows a remote unauthenticated attacker to gain elevated privileges on the target system.

The weakness exists due to improper validation of user-input requests by ASP.NET Core. A remote attacker can send a specially crafted web request and gain elevated privileges.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ASP.NET Core MVC: 1.0.0 - 1.1.0

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External links
http://technet.microsoft.com/en-us/library/security/4021279.aspx

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.