There are numerous ways that attackers are able to target web applications (websites that let you interact with software using a browser) to steal confidential data or introduce malicious code and hijack your computer or device. These attacks exploit weaknesses in components important source such as web apps such as content-management systems, web servers.
Web app attacks comprise an enormous portion of security threats. In the last decade attackers have honed their abilities to find and exploiting vulnerabilities that compromise the perimeter defenses of an application. Attackers can bypass most defenses with techniques like botnets, phishing, and social engineering.
A phishing attack is a method of tricking victims into clicking an email link containing malware. This malware is downloaded onto their computer, which enables attackers to gain access to systems or devices for different reasons. Botnets are collections of infected and compromised connected devices, which attackers utilize to launch DDoS attacks, spread malware, continue ad fraud, and more.
Directory traversal attacks utilize the use of movement patterns to gain access to files, configuration databases, and files on the website. Input sanitization is required to guard against this type of attack.
SQL injection attacks attempt to attack the database that stores important information about a service or website by injecting malicious codes that allow it to override and reveal information it would not normally divulge. Attackers can run commands, dump database information and more.
Cross-site scripting (or XSS) attacks insert malicious code into a trusted website to take over users’ browsers. This allows attackers to access session cookies and private information, impersonate users or alter content, and many more.