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CVE-2023-35391— ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability

Quick assessment

Affected
Microsoft .NET 6.0
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Visual Studio和Microsoft ASP.NET Core都是美国微软（Microsoft）公司的产品。Microsoft Visual Studio是一款开发工具套件系列产品，也是一个基本完整的开发工具集，它包括了整个软件生命周期中所需要的大部分工具。Microsoft ASP.NET Core是一框跨平台开源框架。该框架用于构建Web应用、物联网应用和移动后端等基于云的应用程序。 ASP.NET and Visual Studio存在安全漏洞。攻击者利用该漏洞可以获取

CVSS 6.2 · Medium EPSS 1.90% · P79

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 6

VendorProduct Version RangeStatus
Microsoft .NET 6.0 6.0.0< 6.0.21 affected
Microsoft .NET 7.0 7.0.0< 7.0.10 affected
Microsoft ASP.NET Core 2.1 2.0< 2.1.40 affected
Microsoft Microsoft Visual Studio 2022 version 17.2 17.2.0< 17.2.18 affected
Microsoft Microsoft Visual Studio 2022 version 17.4 17.4.0< 17.4.10 affected
Microsoft Microsoft Visual Studio 2022 version 17.6 17.6.0< 17.6.6 affected
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I. Basic Information for CVE-2023-35391

Vulnerability Information
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Vulnerability Title
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft ASP.NET Core和Visual Studio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Visual Studio和Microsoft ASP.NET Core都是美国微软（Microsoft）公司的产品。Microsoft Visual Studio是一款开发工具套件系列产品，也是一个基本完整的开发工具集，它包括了整个软件生命周期中所需要的大部分工具。Microsoft ASP.NET Core是一框跨平台开源框架。该框架用于构建Web应用、物联网应用和移动后端等基于云的应用程序。 ASP.NET and Visual Studio存在安全漏洞。攻击者利用该漏洞可以获取
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft .NET 6.0 6.0.0 ~ 6.0.21 -
Microsoft .NET 7.0 7.0.0 ~ 7.0.10 -
Microsoft ASP.NET Core 2.1 2.0 ~ 2.1.40 -
Microsoft Microsoft Visual Studio 2022 version 17.2 17.2.0 ~ 17.2.18 -
Microsoft Microsoft Visual Studio 2022 version 17.4 17.4.0 ~ 17.4.10 -
Microsoft Microsoft Visual Studio 2022 version 17.6 17.6.0 ~ 17.6.6 -

II. Public POCs for CVE-2023-35391

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III. Intelligence Information for CVE-2023-35391

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Vendor Advisories for CVE-2023-35391 (1)

Same Patch Batch · Microsoft · 2023-08-08 · 73 CVEs total

CVE-2023-21709 9.8 CRITICAL Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2023-36910 9.8 CRITICAL Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
CVE-2023-36911 9.8 CRITICAL Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
CVE-2023-35385 9.8 CRITICAL Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
CVE-2023-29328 8.8 HIGH Microsoft Teams Remote Code Execution Vulnerability
CVE-2023-38181 8.8 HIGH Microsoft Exchange Server Spoofing Vulnerability
CVE-2023-38169 8.8 HIGH Microsoft SQL OLE DB Remote Code Execution Vulnerability
CVE-2023-38185 8.8 HIGH Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2023-38186 8.8 HIGH Windows Mobile Device Management Elevation of Privilege Vulnerability
CVE-2023-35387 8.8 HIGH Windows Bluetooth A2DP driver Elevation of Privilege Vulnerability
CVE-2023-35381 8.8 HIGH Windows Fax Service Remote Code Execution Vulnerability
CVE-2023-36882 8.8 HIGH Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability
CVE-2023-35368 8.8 HIGH Microsoft Exchange Remote Code Execution Vulnerability
CVE-2023-29330 8.8 HIGH Microsoft Teams Remote Code Execution Vulnerability
CVE-2023-36899 8.8 HIGH ASP.NET Elevation of Privilege Vulnerability
CVE-2023-36897 8.1 HIGH Visual Studio Tools for Office Runtime Spoofing Vulnerability
CVE-2023-36892 8.0 HIGH Microsoft SharePoint Server Spoofing Vulnerability
CVE-2023-35388 8.0 HIGH Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2023-38182 8.0 HIGH Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2023-36891 8.0 HIGH Microsoft SharePoint Server Spoofing Vulnerability

Showing top 20 of 73 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: .NET 6.0
Same vendor: Microsoft

V. Comments for CVE-2023-35391

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