Vulnerability identifier: #VU6457

Vulnerability risk: Medium

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

CVE-ID: CVE-2017-0231

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Internet Explorer
Client/Desktop applications / Web browsers

Vendor: Microsoft

Description
The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to an error when rendering SmartScreen Filter in Microsoft browsers. A remote attacker can create a specially crafted web page, trick the victim into visiting it and perform a spoofing attack.

Successful exploitation of the vulnerability may result in unauthorized access to entire database.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 11

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0231

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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. However, proof of concept for this vulnerability is available.