Privilege escalation in Microsoft .NET, .NET Framework and Visual Studio

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU83152

Risk: Medium

CVSSv4.0: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-36049

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in .NET, .NET Framework and Visual Studio, which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 2.0 - 4.8.1

Visual Studio: 2022 version 17.2 - 2022 version 17.7

.NET: 6.0.0 - 8.0.0

CPE2.3

• cpe:2.3:a:microsoft:microsoft_net_framework:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:3.0:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:3.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:4.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:4.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:4.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:visual_studio:2022:version_17.2:*:*:*:*:*:*
• cpe:2.3:a:microsoft:visual_studio:2022:version_17.4:*:*:*:*:*:*
• cpe:2.3:a:microsoft:visual_studio:2022:version_17.6:*:*:*:*:*:*
• cpe:2.3:a:microsoft:visual_studio:2022:version_17.7:*:*:*:*:*:*
• cpe:2.3:a:microsoft:.net:6.0.0:*:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-36049
https://www.zerodayinitiative.com/advisories/ZDI-23-1639/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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