Vulnerability identifier: #VU57311

Vulnerability risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41355

CWE-ID: CWE-200

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Microsoft .NET Core
Server applications / Frameworks for developing and running applications
Visual Studio
Universal components / Libraries / Software for developers

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in .NET Core and Visual Studio. A remote attacker on the local network can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft .NET Core: 5.0.0

Visual Studio: 16.11.0 16.11.31605.320, 16.9.0 16.9.31025.194

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41355

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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