Vulnerability identifier: #VU23472

Vulnerability risk: Medium

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1486

CWE-ID: CWE-451

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Visual Studio
Universal components / Libraries / Software for developers

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in Visual Studio Live Share extension. A remote attacker who host a Live Share session can trick a victim to connect to the session, cause a connected guest's computer to open a browser and navigate to a URL without consent from the guest.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Visual Studio: 16.0.0 16.0.28729.10, 16.4.0 16.4.29519.181, 16.3.0 16.3.29318.209, 16.2.0 16.2.29123.88, 16.1.0 16.1.28917.181

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1486

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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.