A common concern with poorly written web applications is that they can allow an attacker to:
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A. B. C. D.D.
Structured query language (SQL) injection is one of the most common and dangerous web application vulnerabilities.
Buffer overflows and race conditions are very difficult to find and exploit on web applications.
Distributed denial of service (DoS) attacks have nothing to do with the quality of a web application.
Poorly written web applications can create significant security vulnerabilities that can be exploited by attackers to gain unauthorized access or perform malicious activities. Among the common concerns with poorly written web applications is the risk of injection attacks, including SQL injection attacks.
SQL injection attacks involve an attacker exploiting a vulnerability in a web application that allows them to insert malicious SQL statements into a database query. This type of attack can result in an attacker being able to bypass authentication and gain access to sensitive data or even take control of the database server. The attacker can use SQL injection to manipulate, modify, or delete data, or to execute arbitrary code on the server.
Buffer overflow attacks are another type of attack that can occur due to poorly written web applications. Buffer overflow attacks occur when an attacker sends more data to a buffer than it can handle, causing the buffer to overflow and overwrite adjacent memory locations. This type of attack can result in the attacker gaining control of the system or causing it to crash.
Distributed denial of service (DDoS) attacks are a type of attack in which an attacker floods a web server with traffic, overwhelming it and making it unavailable to legitimate users. DDoS attacks can occur due to poorly written web applications that are vulnerable to exploitation, allowing an attacker to use them as part of a botnet.
Race conditions are a type of vulnerability that can occur when two or more processes or threads access the same resource simultaneously, resulting in unpredictable behavior. Attackers can exploit race conditions to gain unauthorized access to data or resources, or to cause the web application to crash.
In conclusion, the correct answer to the question is D. Injection attacks, particularly SQL injection attacks, are a common concern with poorly written web applications. While buffer overflow attacks, DDoS attacks, and race conditions are also potential risks associated with poorly written web applications, they are not as directly related to injection attacks as SQL injection.