owasp top vulnerability | Cross site scripting XSS | SQLI | CSRF | LFI | RFI
Ethical Hacking is very important part for the website and other domain. Now a day’s Hacker easily access on the website. With the common mistakes of developer’s, website owner has been in trouble. As I am security Researcher I have also found 1000 of security flaw in website. I have reported it. Like Microsoft, opera, adobe, Nokia, Braintree, soundcloud, eBay. But now a day’s Hackers easily access on website database. But in the same way Ethical hacker’s (Security Researcher) or white hacker’s done the job. And save the website from the black hat hacker’s. There are lots of security flaws (vulnerability) in website. According the open web application security project (OWSAP) there are lots of security flaw in website. This is top ten security flaw as follow A1 – Injection
Injection flaws, such as SQL, OS, and LDAP injection occur when untrusted data is sent to an interpreter as part of a command or query. The attacker’s hostile data can trick the interpreter into executing unintended commands or accessing unauthorized data.
A2 – Broken Authentication and Session Management
Application functions related to authentication and session management are often not implemented correctly, allowing attackers to compromise passwords, keys, session tokens, or exploit other implementation flaws to assume other users’ identities.
XSS flaws occur whenever an application takes untrusted data and sends it to a web browser without proper validation or escaping. XSS allows attackers to execute scripts in the victim’s browser which can hijack user sessions, deface web sites, or redirect the user to malicious sites.
A4 – Insecure Direct Object References
•A direct object reference occurs when a developer exposes a reference to an internal implementation object, such as a file, directory, or database key. Without an access control check or other protection, attackers can manipulate these references to access unauthorized data.
A5 – Security Misconfiguration
Good security requires having a secure configuration defined and deployed for the application, frameworks, application server, web server, database server, and platform. All these settings should be defined, implemented, and maintained as many are not shipped with secure defaults. This includes keeping all software up to date.
A6 – Sensitive Data Exposure
Many web applications do not properly protect sensitive data, such as credit cards, tax ids, and authentication credentials. Attackers may steal or modify such weakly protected data to conduct identity theft, credit card fraud, or other crimes. Sensitive data deserves extra protection such as encryption at rest or in transit, as well as special precautions when exchanged with the browser.
A7 – Missing Function Level Access Control
Virtually all web applications verify function level access rights before making that functionality visible in the UI. However, applications need to perform the same access control checks on the server when each function is accessed. If requests are not verified, attackers will be able to forge requests in order to access unauthorized functionality.
A8 - Cross-Site Request Forgery (CSRF)
A CSRF attack forces a logged-on victim’s browser to send a forged HTTP request, including the victim’s session cookie and any other automatically included authentication information, to a vulnerable web application. This allows the attacker to force the victim’s browser to generate requests the vulnerable application thinks are legitimate requests from the victim.
A9 - Using Components with Known Vulnerabilities
Vulnerable components, such as libraries, frameworks, and other software modules almost always run with full privilege. So, if exploited, they can cause serious data loss or server takeover. Applications using these vulnerable components may undermine their defenses and enable a range of possible attacks and impacts.
A10 – Unvalidated Redirects and Forwards
Web applications frequently redirect and forward users to other pages and websites, and use untrusted data to determine the destination pages. Without proper validation, attackers can redirect victims to phishing or malware sites, or use forwards to access unauthorized pages.
So this is top ten vulnerability which is very common. So in my next tutorials I will explain you that how to find a vulnerability in website. If you have any problem regarding vulnerability so comment below or you can directly contact with me. click here 
