Detections
Analytics
Amazon Linux 2023 : aspnetcore-runtime-8.0, aspnetcore-runtime-dbg-8.0, aspnetcore-targeting-pack-8.0 (ALAS2023-2026-1869)
medium Nessus Plugin ID 322108
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1869 advisory.Improper authorization in .NET allows an authorized attacker to elevate privileges locally.
(CVE-2026-45490)
Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally. (CVE-2026-45491)
Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-45591)
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 dotnet8.0 --releasever 2023.12.20260622' or or 'dnf update --advisory ALAS2023-2026-1869 --releasever 2023.12.20260622' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1869.html
https://alas.aws.amazon.com/faqs.html
https://explore.alas.aws.amazon.com/CVE-2026-45490.html
Plugin Details
Severity: Medium
ID: 322108
File Name: al2023_ALAS2023-2026-1869.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 6/22/2026
Updated: 6/22/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:C/A:N
CVSS Score Source: CVE-2026-45491
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:dotnet-runtime-8.0, p-cpe:/a:amazon:linux:dotnet-host, p-cpe:/a:amazon:linux:aspnetcore-runtime-8.0, p-cpe:/a:amazon:linux:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:amazon:linux:dotnet-hostfxr-8.0, p-cpe:/a:amazon:linux:dotnet-runtime-8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-runtime-dbg-8.0, p-cpe:/a:amazon:linux:dotnet8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet, p-cpe:/a:amazon:linux:dotnet-sdk-8.0, p-cpe:/a:amazon:linux:dotnet-apphost-pack-8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-targeting-pack-8.0, p-cpe:/a:amazon:linux:aspnetcore-targeting-pack-8.0, p-cpe:/a:amazon:linux:aspnetcore-runtime-dbg-8.0, p-cpe:/a:amazon:linux:dotnet-host-debuginfo, p-cpe:/a:amazon:linux:dotnet-hostfxr-8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-apphost-pack-8.0, p-cpe:/a:amazon:linux:dotnet-sdk-8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet8.0-debugsource, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:netstandard-targeting-pack-2.1, p-cpe:/a:amazon:linux:dotnet-templates-8.0, p-cpe:/a:amazon:linux:dotnet-sdk-dbg-8.0
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 6/22/2026
Vulnerability Publication Date: 6/9/2026
Reference Information
CVE: CVE-2026-45490, CVE-2026-45491, CVE-2026-45591
IAVA: 2026-A-0565