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No Rate Limit On Forgot Password Page

Low
T
Tennessee Valley Authority
Submitted None
Reported by sailesh01nik

Vulnerability Details

Technical details and impact analysis

## Summary: About No rate Limiting Vulnerability:- No rate limit is a flaw that doesn't limit the no. of attempts one makes on a website server to extract data.It is a vulnerability which can prove to be critical when misused by attackers. ## Description:- I have identified that when using forget password for account, The request has no rate limiting through which i can send multiple request to the server in order to guess the correct username after that in security question also there is no rate limiting set through which i can able to guess the answer as well which can be lead to account takeover. ## Steps To Reproduce: 1. Step 1-Go To This Link https://ctr.tva.com/Login.aspx and click on forget password page. 2. Intercept This Request In Burp and send it to intruder. 3. add mark on username and set payload and click on start attack. 4.as you can see i can able to send multiple request to the server in order to guess the correct username. ## Supporting Material/References: https://www.geeksforgeeks.org/no-rate-limiting-flaw-in-cyber-security ## Impact As rate limiting is not set in forget password page and security question page i can able to perform brute force attack to enumerate valid username and correct answer for security question which can lead to breaking of authentication or can even lead to account takeover.

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