Detections
Analytics
Security Update for .NET Core SDK (October 2023)
high Nessus Plugin ID 182917
Language:
Synopsis
The remote Windows host is affected by multiple Microsoft .NET Core SDK vulnerabilities.Description
The version of Microsoft .NET Core SDK installed on the remote host is 6.0.x prior to 6.0.123, 6.0.x prior to 6.0.318, 6.0.x prior to 6.0.414, 7.0.x prior to 7.0.112 or 7.0.x prior to 7.0.309 or 7.0.x prior to 7.0.402.It is, therefore, affected by multiple vulnerabilities, as follows:
- A vulnerability exists in the ASP.NET Core Kestrel web server where a malicious client may flood the server with specially crafted HTTP/2 requests, causing denial of service. (CVE-2023-44487)
- A null pointer vulnerability exists in MsQuic.dll which may lead to Denial of Service. This issue only affects Windows systems. (CVE-2023-38171)
- A memory leak vulnerability exists in MsQuic.dll which may lead to Denial of Service. This issue only affects Windows systems. (CVE-2023-36435)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update .NET Core SDK, remove vulnerable packages and refer to 5031900 and 5031901.See Also
https://dotnet.microsoft.com/download/dotnet/6.0
https://dotnet.microsoft.com/download/dotnet/7.0
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36435
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38171
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-44487
Plugin Details
Severity: High
ID: 182917
File Name: smb_nt_ms23_oct_dotnet_core_sdk.nasl
Version: 1.8
Type: local
Agent: windows
Family: Windows
Published: 10/11/2023
Updated: 2/23/2024
Configuration: Enable paranoid mode
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2023-44487
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:microsoft:.net_core
Required KB Items: Settings/ParanoidReport, installed_sw/.NET Core SDK Windows
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/10/2023
Vulnerability Publication Date: 10/10/2023
CISA Known Exploited Vulnerability Due Dates: 10/31/2023