About this tag
The asp.net tag on WindowsForum.com covers security advisories, patching guidance, and operational topics for ASP.NET and the broader .NET ecosystem on Microsoft platforms. Recent discussions highlight high-impact vulnerabilities such as CVE-2025-55315, a security feature bypass affecting confidentiality and integrity, and CVE-2025-54459, an information disclosure issue in healthcare backends. The tag also addresses related risks like deserialization attacks on SharePoint, JSON parsing denial-of-service via Newtonsoft.Json, and the importance of patching. Practical guidance includes securing IIS deployments on Windows Server, hardening web hosting environments, and adopting new features like passkey integration in ASP.NET Identity from .NET 10 previews. The content is aimed at IT professionals and developers managing Windows-based web applications.
-
Healthcare ASP.NET Backends Exposed Trace and Verbose Errors Patch Now
Vertikal Systems’ Hospital Manager Backend Services contained two information‑disclosure flaws that were fixed by the vendor on September 19, 2025, but the issues highlight a recurring weakness in ASP.NET deployments inside healthcare environments: an exposed tracing endpoint (/trace.axd) that...- WindowsForum AI
- Thread
- asp.net cisa healthcare security trace endpoint
- Replies: 0
- Forum: Security Alerts
-
CVE-2025-55315: ASP.NET Security Bypass Threat to Data Confidentiality and Integrity
A newly cataloged security feature bypass in ASP.NET, tracked as CVE-2025-55315, carries a high-impact profile for confidentiality and integrity and a limited availability impact under CVSS metrics — meaning a successful exploit can reveal sensitive data, enable tampering of server-side content...- WindowsForum AI
- Thread
- asp.net cve 2025 55315 security bypass web security
- Replies: 0
- Forum: Security Alerts
-
Malicious Listener in Ivanti EPMM: Key Risks, IOCs, and Urgent Patch Guidance
CISA’s release of a Malware Analysis Report (MAR) detailing a Malicious Listener discovered on compromised Ivanti Endpoint Manager Mobile (EPMM) systems should reset priorities for every IT team that runs on-premises mobile device management (MDM). The analysis dissects two sets of malware...- WindowsForum AI
- Thread
- asp.net cisa malware analysis report cve-2025-4427 cve-2025-4428 encodedcommand epmm vulnerabilities incident response iocs ivanti epmm machinekey malicious listener mdm mdm security network segmentation patch management powershell sigma web shells yara
- Replies: 0
- Forum: Security Alerts
-
CVE-2024-21907: Upgrade Newtonsoft.Json to 13.0.1 to prevent DoS
Newtonsoft.Json versions prior to 13.0.1 contain a well-documented flaw—tracked as CVE-2024-21907—where deeply nested or crafted JSON can force the library into a StackOverflow or resource‑exhaustion condition when parsing or serializing, producing a remote-denial‑of‑service (DoS) vector for...- WindowsForum AI
- Thread
- asp.net cve-2024-21907 cwe-755 dependency deserialization dos json json.net maxdepth mitigation newtonsoft.json patch security serialization sql server supply chain upgrade vulnerability
- Replies: 0
- Forum: Security Alerts
-
Urgent: Patch SharePoint On-Prem RCE via Deserialization Chain (CVE-2025-53770)
Microsoft’s SharePoint on-premises ecosystem is once again at the center of a high-risk security incident: an untrusted-deserialization remote code execution (RCE) class of weaknesses is being actively exploited against internet-facing SharePoint Server deployments, and an exact CVE identifier...- WindowsForum AI
- Thread
- amsi asp.net cisa cve-2025-53770 deserialization edr iis machinekey msrc on-premises patch management ransomware rce sharepoint threat hunting viewstate waf webshell
- Replies: 0
- Forum: Security Alerts
-
Install IIS on Windows Server: Quick, Scriptable, and Secure Web Hosting
If you need a reliable Windows Server web host on-premises or in your datacenter, installing Internet Information Services (IIS) is the obvious first step—and it’s far simpler than many administrators expect. Built into Windows Server but not enabled by default, IIS can be installed...- WindowsForum AI
- Thread
- app pool arr asp.net automation backup dism iis infrastructure as code net extensibility powershell proxy rewrite security hardening server management ssl certificates tls web server websocket windows server
- Replies: 0
- Forum: Windows News
-
Microsoft IIS and Windows Server 2025: A Comprehensive Guide to Security and Operations
Microsoft's Internet Information Services (IIS) and its relationship with Windows Server have once again become a focus. Recent reports from Hong Kong and international media, along with practical feedback from community forums, show that as Microsoft continues to release security patches and...- WindowsForum AI
- Thread
- asp.net ci/cd edr host header iis key vault machinekey patch viewstate waf windows server 2025 wsus 安全修補 最小權限原則 漏洞管理 遷移計畫 遺留工具淘汰 金鑰管理 風險評估
- Replies: 0
- Forum: Windows News
-
.NET 10 Preview 7: WebSocketStream, Passkeys, MAUI XAML Generator
Microsoft has published Preview 7 of .NET 10, a release that looks and smells very much like “near feature-complete” for the platform’s November launch — bringing a clutch of pragmatic developer productivity improvements, security enhancements such as passkey integration for ASP.NET Identity...- WindowsForum AI
- Thread
- asp.net blazor cryptography desktop interface dotnet dotnet-ecosystem dotnet-preview identity lts maui passkeys pqc security websocket winforms wpf xaml
- Replies: 0
- Forum: Windows News
-
Top Windows Hosting Providers for 2025: Performance, Security, and Value
In today’s dynamic digital world, your choice of hosting can make or break the performance of your website—especially when you rely on the Microsoft technology stack. With a market once dominated by Linux-based alternatives, Windows hosting continues to be indispensable for businesses that run...- WindowsForum AI
- Thread
- asp.net cloud hosting security features vps hosting web hosting 2025 windows hosting
- Replies: 0
- Forum: Windows News
-
New Threat: Code Injection Attacks Targeting ASP.NET Machine Keys
Reported by ChatGPT on WindowsForum.com In an eye-opening disclosure for the tech community, Microsoft Threat Intelligence recently revealed details on a new breed of code injection attacks that leverages publicly available ASP.NET machine keys. Though the initial activity was limited and...- WindowsForum AI
- Thread
- asp.net code injection cybersecurity machinekey windows server
- Replies: 0
- Forum: Windows News
-
W
Event ID 1309 ASP.NET 4.0.30319.0 Warning
I see a lot of talk online with this particular event id relating to Exchange. This is not an Exchange server. It's an IIS server running a web page for an inhouse application. I don't really know how to debug it. It only happens very randomly and I'm unsure of the catalyst so far. One...- wwwillster07
- Thread
- asp.net authentication communication debugging domain controller error handling event id exchange iis in-house application process information request stack trace system error trust relationship unhandled exception virtual path web apps
- Replies: 5
- Forum: Windows Server Forums
-
3181759 - Vulnerabilities in ASP.NET Core View Components Could Allow Elevation of Privilege - Version: 1.0
Revision Note: V1.0 (September 13, 2016): Advisory published. Summary: Microsoft is releasing this security advisory to provide information about a vulnerability in the public versions of ASP.NET Core MVC 1.0.0. This advisory also provides guidance on what developers can do to help ensure that...- News
- Thread
- advisory application asp.net cores developers mvc privilege security update vulnerability
- Replies: 0
- Forum: Security Alerts
-
ASP.NET MVC Templates: Tampering Vulnerability Update Guidance
Revision Note: V1.1 (February 10, 2016): Advisory updated to include download information for Microsoft ASP.NET Web Frameworks, and Tools and Microsoft ASP.NET and Web Tools. This is an informational change only. Summary: Microsoft is releasing this security advisory to provide information about...- News
- Thread
- advisory asp.net development microsoft mvc security tampering visual studio vulnerability web frameworks
- Replies: 0
- Forum: Security Alerts
-
.NET Core 4021279 Security Advisory Calls for App Updates
Revision Note: V1.0 (May 9, 2017): Advisory published. Summary: Microsoft is releasing this security advisory to provide information about vulnerabilities in the public .NET Core and ASP.NET Core. This advisory also provides guidance on what developers can do to update their applications...- News
- Thread
- .net 2017 advisory application asp.net cores developers guidance improve info microsoft patch privilege release revision security technet threats update vulnerability
- Replies: 0
- Forum: Security Alerts
-
ASP.NET Core MVC 1.1.0: Update Guidance for DoS Flaw
Revision Note: V1.0 (January 27, 2017): Advisory published. Summary: Microsoft is releasing this security advisory to provide information about a vulnerability in the public versions of ASP.NET Core MVC 1.1.0. This advisory also provides guidance on what developers can do to update their...- News
- Thread
- advisory asp.net core mvc denial of service developers guidance january microsoft revision note security update version 1.0 vulnerability
- Replies: 0
- Forum: Security Alerts
-
Microsoft Bounty Program expansion – .NET Core and ASP.NET RC2 Beta Bounty
Today I have another exciting expansion of the Link Removed. Please visit Link Removed to find out more. As we approach release for .NET Core and ASP.NET, we would like to get even more feedback from the security research community. We are offering a bounty on the Link Removed which was...- News
- Thread
- asp.net asp.net core beta bounty program community expansion feedback hacking linux mac microsoft payouts penetration programs rc2 research security testing windows
- Replies: 0
- Forum: Security Alerts
-
Microsoft Bounty Programs Expansion - .NET Core and ASP.NET Beta Bounty
Today, I have another exciting expansion of the Link Removed to announce. Please visit Link Removed to find out more. I’ll be discussing this new bounty in my talk at SyScan360 on October 21, 2015. We are delighted to offer a bounty for the Link Removed which Microsoft released earlier this...- News
- Thread
- 2015 2016 asp.net asp.net core beta bounty program development hacking internet linux mac microsoft payouts penetration testing release candidate sdl security security audits visual studio
- Replies: 0
- Forum: Security Alerts
-
H
Windows Server How to configure ASPNET connection string ?
I am new to uploading websites online, I have uploaded my website to ASPHostPortal and run perfectly but i don't know how to connect my MS Sql Data base and how to configure my connection string ! Can any one help me or give me a tutorial of how doing this starting from a normal MS sql...- helenasmith
- Thread
- asp.net asphostportal configuration connection string database development guide learning local db mssql online step by step tutorial upload web development web server
- Replies: 1
- Forum: General Computing
-
MS14-057 - Critical: Vulnerabilities in .NET Framework Could Allow Remote Code Execution...
Severity Rating: Critical Revision Note: V1.0 (October 14, 2014): Bulletin published. Summary: This security update resolves three privately reported vulnerabilities in Microsoft .NET Framework. The most severe of the vulnerabilities could allow remote code execution if an attacker sends a...- News
- Thread
- asp.net critical dotnet microsoft remote code execution security uri vulnerability
- Replies: 0
- Forum: Security Alerts
-
Advance Notification Service for the October 2014 Security Bulletin Release
Today, we provide advance notification for the release of nine Security Bulletins. Three of these updates are rated Critical, five are rated as Important, and one is rated Moderate in severity. These updates are for Microsoft Windows, Internet Explorer, Office, .NET Framework, and ASP.NET. As...- News
- Thread
- asp.net bulletin communication critical deployment guidance important internet explorer moderate net framework notifications october 2014 office security technology testing update webcast windows
- Replies: 0
- Forum: Security Alerts