Remote code execution in Microsoft .NET Framework

1) Input validation error

EUVDB-ID: #VU70177

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-41089

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input in the .NET Framework. A remote attacker can pass specially crafted input to the application and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft .NET Core: 3.1 - 7.0.0

Microsoft .NET Framework: 2.0 Service Pack 2 - 4.8.1

Visual Studio: 16.0.0 16.0.28729.10 - 2019 for Mac version 8.9

CPE2.3

• cpe:2.3:a:microsoft:microsoft_.net_core:3.1:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_.net_core:6.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_.net_core:7.0.0:*:*:*:*:*:*:*
• 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:16.0.0:16.0.28729.10:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41089

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.