CVE-2024-0056: 
vulnerability analysis and mitigation

Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider Security Feature Bypass Vulnerability, identified as CVE-2024-0056, was disclosed on January 9, 2024. The vulnerability affects multiple versions of Microsoft.Data.SqlClient and System.Data.SqlClient components, including .NET Framework versions from 4.8 to 4.8.04690.02, and various versions of Microsoft.Data.SqlClient from 2.1 to 5.1.3 (NVD).

The vulnerability has been assigned a CVSS v3.1 base score of 8.7 (HIGH) with the vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N. This indicates that the vulnerability is network-accessible, requires high attack complexity, needs no privileges or user interaction, has changed scope, and can result in high confidentiality and integrity impact, with no availability impact. Microsoft has classified this as a Security Feature Bypass vulnerability, and it has been associated with CWE-319 (Cleartext Transmission of Sensitive Information) (NVD).

The vulnerability poses significant risks with potential for high impacts on both confidentiality and integrity of affected systems. Given its CVSS score of 8.7 and classification as a Security Feature Bypass vulnerability, successful exploitation could lead to unauthorized access to sensitive information (NVD).

Microsoft has released security updates to address this vulnerability. Users are advised to update to the latest versions of affected components: Microsoft.Data.SqlClient versions 2.1.7, 3.1.5, 4.0.5, and 5.1.3 or later. For .NET Framework, updates are available for versions 4.8 through 4.8.04690.02 (NVD).