User Enumeration

Impact: Medium


User Enumeration occurs when web applications inadvertently reveal whether a username exists on the system, either due to misconfiguration or design decisions. Attackers exploit this by gathering a list of valid usernames to launch targeted attacks, such as brute force or default username and password attacks.


To prevent User Enumeration, ensure the application consistently returns generic error messages for invalid account names, passwords, or other user credentials during the login process. Additionally, delete default system accounts and test accounts before deploying the system into production or exposing it to untrusted networks.


Last updated on May 13, 2024

This issue is available in SmartScanner Professional

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