Detections
Analytics

Amazon Linux 2023 : aspnetcore-runtime-9.0, aspnetcore-runtime-dbg-9.0, aspnetcore-targeting-pack-9.0 (ALAS2023-2025-1231)

critical Nessus Plugin ID 271270

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1231 advisory.

 Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally. (CVE-2025-55247)

 Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network. (CVE-2025-55248)

 Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network. (CVE-2025-55315)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'dnf update dotnet9.0 --releasever 2023.9.20251020' or or 'dnf update --advisory ALAS2023-2025-1231 --releasever 2023.9.20251020' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2025-1231.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2025-55247.html

https://explore.alas.aws.amazon.com/CVE-2025-55248.html

https://explore.alas.aws.amazon.com/CVE-2025-55315.html

Plugin Details

Severity: Critical

ID: 271270

File Name: al2023_ALAS2023-2025-1231.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/23/2025

Updated: 10/23/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.9

CVSS v2

Risk Factor: High

Base Score: 8.7

Temporal Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:P

CVSS Score Source: CVE-2025-55315

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 8.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:dotnet-host, p-cpe:/a:amazon:linux:netstandard-targeting-pack-2.1, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:aspnetcore-targeting-pack-9.0, p-cpe:/a:amazon:linux:dotnet-hostfxr-9.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-runtime-dbg-9.0, p-cpe:/a:amazon:linux:dotnet-sdk-9.0, p-cpe:/a:amazon:linux:dotnet-sdk-9.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-sdk-9.0-source-built-artifacts, p-cpe:/a:amazon:linux:dotnet-sdk-dbg-9.0, p-cpe:/a:amazon:linux:dotnet-targeting-pack-9.0, p-cpe:/a:amazon:linux:dotnet-templates-9.0, p-cpe:/a:amazon:linux:dotnet9.0-debugsource, p-cpe:/a:amazon:linux:dotnet, p-cpe:/a:amazon:linux:dotnet-host-debuginfo, p-cpe:/a:amazon:linux:aspnetcore-runtime-9.0, p-cpe:/a:amazon:linux:aspnetcore-runtime-dbg-9.0, p-cpe:/a:amazon:linux:dotnet-apphost-pack-9.0, p-cpe:/a:amazon:linux:dotnet-apphost-pack-9.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-hostfxr-9.0, p-cpe:/a:amazon:linux:dotnet-runtime-9.0, p-cpe:/a:amazon:linux:dotnet-runtime-9.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-sdk-aot-9.0, p-cpe:/a:amazon:linux:dotnet-sdk-aot-9.0-debuginfo

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: No known exploits are available

Patch Publication Date: 10/23/2025

Vulnerability Publication Date: 10/14/2025

Reference Information

CVE: CVE-2025-55247, CVE-2025-55248, CVE-2025-55315

IAVA: 2025-A-0752