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Title: Implementation Review of New OTP Security Feature in Password Change

1. Overview

In response to previous security concerns, the application has implemented a new layer of security when users attempt to change their password. Now, upon initiating a password change, the system prompts users to verify their identity by entering a One-Time Password (OTP) sent via email or SMS. This feature was added to strengthen account security by ensuring that only the legitimate user can proceed with the password change process.


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2. Observations

The new OTP verification system is a positive enhancement to the overall security of the password change process. It successfully requires users to confirm their identity before making any changes. However, during testing, it was observed that there is no limit on how many OTPs a user can request. This could allow malicious actors to exploit the feature by requesting unlimited OTPs. Although the OTPs themselves are secure, the lack of restrictions could make the system vulnerable to brute-force attacks, where multiple OTPs are requested in an attempt to overwhelm the system or discover valid codes.


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3. Conclusion

The introduction of OTP verification adds an important layer of security to the password change process. However, the system allows users to request unlimited OTPs, which opens up the risk of abuse. To mitigate this, it is recommended to implement rate limiting and introduce a cooldown period between OTP requests. Addressing this flaw will help prevent brute-force attacks and enhance the robustness of the security feature.


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