Building Secure ASP NET Applications 2003 by Microsoft Corporation

By Microsoft Corporation

Building safe disbursed net functions might be hard. it always comprises integrating a number of diversified applied sciences and products—yet the entire software will basically be as safe as its weakest hyperlink. This consultant provides a pragmatic, scenario-driven method of designing and development security-enhanced ASP.NET purposes for Microsoft® home windows® 2000 and model 1.1 of the Microsoft .NET Framework. It makes a speciality of the foremost parts of authentication, authorization, and safe verbal exchange inside of and around the ranges of dispensed .NET net applications.

This advisor focuses on:

  • Authentication—to establish the consumers of your software
  • Authorization—to supply entry controls for these consumers
  • Secure communication—to support make sure that messages stay deepest and aren't altered through unauthorized events

Who may still learn this guide:

Middleware builders and designers who construct or plan to construct .NET net purposes utilizing ASP.NET, XML internet providers, company prone (COM+), .NET Remoting, or Microsoft ADO.NET

About “Patterns and Practices”:

Patterns & Practices include particular suggestions illustrating the right way to layout, construct, set up, and function architecturally sound suggestions to tough enterprise and technical situations. The technical tips is reviewed and licensed by way of Microsoft engineering groups, experts, and Product help companies, and via companions and customers.

Note: comprises entire pattern at the Web.

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Example text

If you design solid authentication and authorization strategies at the gate, you can circumvent the need to delegate the original caller’s security context all the way through to your application’s data tier. Assume external systems are insecure. If you don’t own it, don’t assume security is taken care of for you. Reduce surface area. Avoid exposing information that is not required. By doing so, you are potentially opening doors that can lead to additional vulnerabilities. Also, handle errors gracefully; don’t expose any more information than is required when returning an error message to the end user.

IIS Web permissions can be used as an access control mechanism to restrict the capabilities of Web users to access specific files and folders. Unlike NTFS file permissions, Web permissions apply to all Web users, as opposed to individual users or groups. NTFS file permissions provide further restrictions on Web resources such as Web pages, images files, and so on. These restrictions apply to individual users or groups. IIS checks Web permissions, followed by NTFS file permissions. A user must be authorized by both mechanisms for them to be able to access the file or folder.

NET Web application. NET Applications Chapter 6 – Extranet Security This chapter presents a set of common extranet application scenarios and for each one presents recommended security configurations, configuration steps and analysis. This chapter covers the following extranet scenarios. ● Exposing a Web Service (B2B partner exchange) This scenario is shown in Figure 6. NET Identity Certificate Mapping Active Directory IPSec (Privacy/ Integrity) Windows Authentication User-defined Database Roles SQL Server (Authorization) Figure 6 Security configuration for Web Service B2B partner exchange scenario Read this chapter to lean how to: ● Authenticate partner companies by using client certificate authentication against a dedicated extranet Active Directory.

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