Open web application security project (OWASP) is a non-profit organization that works with the goal of helping website owners and security experts to protect web applications from cyber-attacks. For the purpose to perform security assessments and research OWASP has more than 30,000 volunteers around the world. It represents a broad consensus about the most critical security risks to web applications.
Top 10 Web Application Security Risks
SQL injection is a type of attack that makes it possible to execute malicious SQL statements. These statements control a database server behind a web application. An SQL injection vulnerability may affect any web application or website that works or uses a SQL database.
Authentication always ensures that only a legitimate user can access the information and privileges on the web application. It gets broken whenever an attacker tries to bypass the process and pretend to be a legitimate user on the application. Such cases occur when the credentials of valid users may be stolen or hijacked for access to the application.
Sensitive Data Exposure
Sensitive data exposure means letting unauthorized parties access stored or transmitted sensitive information such as debit or credit card numbers, passwords. For prevention of such kinds of attacks, we should define clearly at the time of building a web application that what are the data we consider to be sensitive data.
XML External Entities (XXE)
XML external entity attack is a type of attack against an application that parses XML input. This attack mostly occurs when XML input that contains a reference to an external entity is processed by a weakly configured XML parser. For example: – the application that accepts XML directly or XML uploads from untrusted sources, or inserts untrusted data into XML documents, which is further parsed by an XML processor.
Broken Access Control
Bypassing access control checks by modifying the URL, or HTML page or simply using a custom API attack tool. Attackers can exploit these flaws to access unauthorized functionality such as access other users’ accounts, view sensitive files, modify data of other users, change the rights of access, etc.
Security misconfiguration is the issue that happens most commonly. This is the result of incomplete and insecure default configurations, misconfigured HTTP headers, and verbose error messages containing sensitive information.
Serialization means converting an object in a format for saving it to a file or database or sending it via streams or networks, The deserialization processes are just the opposite of serialization, insecure deserialization is a vulnerability in which an unknown or untrusted data is used to execute code, bypass authentication or further abuse the logic behind the application, the most common example of an insecure deserialization vulnerability is when attacker loads untrusted code into a serialized object, which is then forwarded to the web application, also sometimes referred as an “object injection” vulnerability.
Using Components With Known Vulnerabilities
When we are using components such as software modules, frameworks, and other libraries, run with the same privileges as the application. If any of the vulnerable components are exploited, such kind of attack can be a serious cause of data loss or server takeover.
Insufficient Logging & Monitoring
Logging is the process of keeping track of all the activities and interactions happening in your network and alarm such suspicious activities, monitoring consists of observing the system logs and searching for anomalies. insufficient logging and monitoring can be a bad practice, in fact whenever an attacker tries to infiltrate the target then the system generates logs that don’t correspond to your normal system activity, if we can’t monitor or detect such deviations in our network then it can be a vulnerability.
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