Vulnerability identifier: #VU85244

Vulnerability risk: High

CVSSv3.1: 7.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-0056

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
System.Data.SqlClient
Other software / Other software solutions
Microsoft.Data.SqlClient
Other software / Other software solutions
.NET
Other software / Other software solutions
Visual Studio
Universal components / Libraries / Software for developers
Microsoft SQL Server
Server applications / Database software
Microsoft .NET Framework
Server applications / Frameworks for developing and running applications

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to security features bypass in Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider. A remote attacker can evade the encryption used in a TLS connection.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

System.Data.SqlClient: All versions

Microsoft.Data.SqlClient: 2.1 - 5.1

Visual Studio: 2022 version 17.6

Microsoft SQL Server: 2022

Microsoft .NET Framework: 4.8, 4.6.2, 4.7, 4.7.1, 4.7.2, 3.5, 4.8.1, 2.0 Service Pack 2

.NET: 6.0.0, 7.0.0, 8.0.0

---

External links
http://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-0056

---

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.