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Web Application Technologies

April 15, 2020April 15, 2020 Krishna Encoding Schemes, HTTP protocol, The HTTP Protocol, Web Application Technologies, Web Functionality

Web applications employ a myriad of different technologies to implement their functionality. This article contains a short primer on the

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Managing the Application

April 14, 2020April 14, 2020 Krishna administrative function, administrative interface, administrative interface within a web application, administrators, authentication mechanism, Managing the Application

Any useful application needs to be managed and administered, and this facility often forms a key part of the application’s

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Handling Attackers

April 14, 2020 Krishna Alerting Administrators, attackers, Core Defense Mechanisms, Handling Errors, IP address, Maintaining Audit Logs, scripted attack, security-critical applications

Anyone designing an application for which security is remotely important must work on the assumption that it will be directly

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Handling User Input

April 14, 2020 Krishna “Accept Known Good”, “Reject Known Bad”, application performing input validation, Approaches to Input Handling, Boundary Validation, Core Defense Mechanisms, HTML mark-up, Safe Data Handling, Sanitization, Semantic Checks, Varieties of Input, web application

Recall the fundamental security problem described in Chapter 1: all user input is untrusted. A huge variety of different attacks

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Handling User Access

April 13, 2020 Krishna Access Control, attack surface, Authentication, Core Defense Mechanisms, enforcing access control, enforcing session timeout, Handling User Access, HTTP request, security vulnerabilities, Session Management, typical login function, URL query, web application

A central security requirement that virtually any application needs to meet is to control users’ access to its data and

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Core Defense Mechanisms

April 13, 2020April 13, 2020 Krishna Core Defense Mechanisms, Handling Attackers, Handling User Access, Handling User Input, Managing the Application

The fundamental security problem with web applications — that all user input is untrusted — gives rise to a number

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The Future of Web Application Security

April 9, 2020 Krishna attack, awareness of security, software security, SQL injection, The Future of Web Application Security, VULNERABILITIES, web applications

Several years after their widespread adoption, web applications on the Internet today are still rife with vulnerabilities. Understanding of the

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Web Application Security

April 9, 2020April 9, 2020 Krishna Broken access controls, Broken authentication, Cross-site scripting, Deceptive Simplicity, HTTP/S, Immature Security Awareness, In-House Development, Information leakage, Key Problem Factors, malicious attacker, Network administrators, Overextended Technologies, Rapidly Evolving Threat Profile, Resource and Time Constraints, SQL injection, The Core Security Problem, The New Security Perimeter, This Site Is Secure, web application security

As with any new class of technology, web applications have brought with them a new range of security vulnerabilities. The

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The Evolution of Web Applications

April 9, 2020April 9, 2020 Krishna A traditional web site containing static information, A typical web application, Auctions, Banking, Benefits of Web Applications, Client-side scripting, Common Web Application Functions, communications protocol, core technologies, enterprise resource planning (ERP) software, Gambling, Google Apps, http, Interactive information, INTERNET, network configuration, Outlook Web Access, protocols, security vulnerabilities, Shopping, Social networking, The Evolution of Web Applications, web applications, Web logs, Web mail, Web search

In the early days of the Internet, the World Wide Web consisted only of web sites. These were essentially information

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Version Numbering & License Terms

April 2, 2020 Krishna bug, COPYING, development, experimental kernels, General Public License, GNU, GPL, License Terms, status of development, Version Numbering & License Terms, versions

Version Numbering Before digging into programming, we’d like to comment on the version numbering scheme used in Linux and which