KLA11772 Multiple vulnerabilities in Microsoft Developer Tools

Multiple vulnerabilities were found in Microsoft Developer Tools. Malicious users can exploit these vulnerabilities to gain privileges, cause denial of service, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. An elevation of privilege vulnerability in .NET Framework can be exploited remotely to gain privileges.
2. A denial of service vulnerability in .NET Core & .NET Framework can be exploited remotely via specially crafted requests to cause denial of service.
3. A denial of service vulnerability in ASP.NET Core can be exploited remotely via specially crafted requests to cause denial of service.
4. A remote code execution vulnerability in Visual Studio Code Python Extension can be exploited remotely to execute arbitrary code.
5. A remote code execution vulnerability in Visual Studio Code Python Extension can be exploited remotely via specially crafted file to execute arbitrary code.

Original advisories

CVE-2020-1066

CVE-2020-1108

CVE-2020-1161

CVE-2020-1171

CVE-2020-1192

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-.NET-Framework

Microsoft-Visual-Studio

CVE list

CVE-2020-1066 warning

CVE-2020-1108 warning

CVE-2020-1161 warning

CVE-2020-1171 critical

CVE-2020-1192 critical

KB list

4556826

4556813

4556812

4556807

4556406

4556405

4556404

4556403

4556402

4556401

4556400

4556441

4552929

4552926

4552931

4556399

4552928

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

Affected Products

• Microsoft .NET Framework 3.5Microsoft .NET Framework 4.5.2ASP.NET Core 3.1Microsoft .NET Framework 4.6Microsoft Visual Studio 2019 version 16.5Microsoft Visual Studio 2017 version 15.9 (includes 15.1 - 15.8)Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2Microsoft .NET Framework 2.0 Service Pack 2Microsoft .NET Framework 4.8.NET Core 3.1Microsoft .NET Framework 3.5.1Microsoft .NET Framework 3.5 AND 4.7.2.NET Core 5.0.NET Core 2.1Visual Studio CodeMicrosoft .NET Framework 3.5 AND 4.8Microsoft Visual Studio 2019 version 16.0Microsoft .NET Framework 3.0 Service Pack 2Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2