A web app is a great tool for interactions between clients and a company product. But because web apps store and process a lot of sensitive and private clients' information, they frequently occur under scammers' spotlight.
Open Web Security Project community with a primary goal to increase web app security, created a document with recommendations to minimize risks. We highly recommend implementing web app testing into the development process.
According to the OWSP, there are the main vulnerabilities in web apps that can be loopholes for cybercriminals.
SQL injection
SQL is a query language that can be used for access, changing, and deleting data in databases. According to Edgescan 2020 Vulnerability Stats Report, 42% of web app vulnerabilities were caused by SQL injections. It is one of the most popular cyberattacks as it is easy enough to perform. The main danger is that a large part of the web is built on SQL.
Cross-site scripting (XSS)
Such sites as MySpace, Facebook, Barack Obama’s electoral campaign website, eBay, and even the FBI underwent XSS cyberattack.
Cross-site scripting is a vulnerability in dynamic web pages and web apps. An attacker can implement malicious scripts on a web page to get access to a user's web browser. Thus, to become attackers' victim enough to visit a page with malicious scripts. Also, scammers can change and manage all content of the website. For example, they can redirect users to other malicious sites. Attackers can get access to user's web browser cookies. With cookies, they can make manipulative actions, impersonate to steal private data.
Insufficient Transport Layer Protection
This vulnerability is caused by a lack of security measures or expired security certificates.
Web apps use exchanging data between user and server. When user input data, app refer to a server to authenticate information and app use security protocols( SSL/TLS) to protect data. But in some parts of a web app, an app doesn't use it properly or use expired security certificates, and data occurs exposed.
It can lead to a data breach, and attackers can intercept private information.
Insecure direct object references (IDOR)
Insecure direct object references (IDOR) is a failure of access control implementation when a web app allows getting access to objects through inputting data by users. Attackers can modify parameters in URL, for example, value ID that refers to a user account. If a web app has IDOR vulnerability, attackers will get access to another account without authorization. Dangerous is that number 1 is an admin account.
