The Open Web Application Security Project is a worldwide not-for-profit charitable organization focused on improving the security of software and websites. Bill Dinger goes over the 2017 OWASP Top 10 vulnerabilities and how they apply to owasp top 10 net ASP.NET, including a demo of each vulnerability, the risk it poses, how to detect the attack, and how to mitigate it. Learn security best practices for WordPress websites to improve website posture and reduce the risk of a compromise.

Attackers can perform remote code execution on the user's machine, steal credentials, or deliver malware from redirect sites. Sensitive data exposure issues can be introduced when applications access unencrypted data, particularly personally identifiable information and other regulated data types. Examples are often found when weak cryptographic cyphers are used in legacy applications, secure transport protocols are implemented incorrectly, or data-centric security is not in use.

Summary of OWASP Vulnerabilities Developers Should Know

This flaw occurs when the server accepts an incoming request but does not verify its authenticity or validity. For example, an application could obtain the login credentials from someone but not ensure that it was from the expected user. In this case, the server would accept login credentials from anyone. A hacker could then forge a user’s credentials and send the malicious request to the server. The server would then authenticate the malicious script and execute it, allowing the hacker to access the system. This flaw results when an application contains components that have known limitations or are known to be exploitable. That is, the application was designed with known security issues in mind.

Web application security risks are a serious concern for businesses of all sizes. Any organization that does business via the internet is vulnerable to a security breach. The OWASP Top 10 is a list of the most prevalent web application vulnerabilities. These vulnerabilities are graded from one to ten, with one being the most critical and ten least critical.

Anatomy of a SQL injection attack

These flaws can lead to remote code execution attacks, one of the most serious attacks possible. Our users controller Edit method doesn't have marked, making it vulnerable to a CSRF attack. This is fixed in all other methods on any of the other actions where is present. This https://remotemode.net/ is presents in usersController / delete which lets us delete users without logging access. In the CommentsController / delete we log out there is an action occuring. You can also seem a more comprehensive example using Audit.Net in the CommentsController / Edit method.

Implement weak-password checks, such as testing new or changed passwords against a list of the top 10,000 worst passwords. User sessions or authentication tokens (particularly single sign-on tokens) aren’t properly invalidated during logout or a period of inactivity. Directory browsing in the ASP.NET Core application should not be allowed i.e. if the user has requested the URL of some folder path then the list of files available in the folder should not be displayed in the browser. In this way, we have better control over the security by allowing only the trusted sites to access API and by restricting all other sites we prevent malicious sites from accessing the API. You can download the source code from the GitHub link provided above and once downloaded you will have to run the migrations. You can add migrations & update the database by executing the below commands in the package manager console.