You are monitoring network activities and observe an unauthorized user attempting to exploit a known vulnerability in a web application to gain root access on the server. What mitigation technique should you deploy to prevent this escalation?
Implementing proper input validation helps ensure that incoming data is properly sanitized, preventing malicious code injection that an attacker might use for privilege escalation. This technique blocks attempts to exploit vulnerabilities in applications by validating and sanitizing the user input. Other options like enabling logging, creating complex passwords, and isolating network traffic are important but do not directly address the prevention of privilege escalation through input validation.
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What are common vulnerabilities that proper input validation can prevent?
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Can you explain the concept of a vulnerability in the context of web applications?