it’s Yash Gurav from Pune, India! Today in this blog i am going include all the possible ways, tools and technique to bypass Multi-Factor Authentication & 2 Factor Authentication. So Enjoy Guys :D
Question : what is 2FA & MFA ?
2FA (Two-Factor Authentication) and MFA (Multi-Factor Authentication) are security measures used to protect online accounts. They require users to provide more than one form of identification before granting access.
In Simple Terms
- 2FA typically involves two methods, often something you know (like a password) and something you have (like a code sent to your phone).
- MFA goes beyond two factors and adds additional layers of authentication, such as something you are (biometrics like fingerprints) or something you possess (a smart card).
Bypass Technique
- Response Manipulation : In response if “success”:false
Change it to “success”:true - Status Code Manipulation : If Status Code is 4xx
Try to change it to 200 OK and see if it bypass restrictions - 2FA Code Leakage in Response : Check the response of the 2FA Code Triggering Request to see if the code is leaked.
- JS File Analysis : Rare but some JS Files may contain info about the 2FA Code, worth giving a shot
- 2FA Code Reusability : Same code can be reused
- Lack of Brute-Force Protection : Possible to brute-force any length 2FA Code
- Missing 2FA Code Integrity Validation : Code for any user account can be used to bypass the 2FA
- CSRF on 2FA Disabling : No CSRF Protection on disabling 2FA, also there is no auth confirmation
- Password Reset Disable 2FA : 2FA gets disabled on password change/email change
- Backup Code Abuse : Bypassing 2FA by abusing the Backup code feature
Use the above mentioned techniques to bypass Backup Code to remove/reset 2FA reset restrictions - Clickjacking on 2FA Disabling Page : Iframing the 2FA Disabling page and social engineering victim to disable the 2FA
- Bypass 2fa using Null or 0000 : Enter the code 000000 or null to bypass 2FA protection.
- forcefull browsing : lets suppose we enable 2fa on x.com and after entering the username:password we get the 2fa then we enter valid otp or code then we get into the website & location is x.com/home, so now we now after entering the 2fa code application send us to the /home path then now we can do 1. Enter the Username:Passowrd then Application shows us x.com/2fa change the /2fa to /home & Refresh it if application is not asking for 2FA code that means we successfully Bypass 2FA ! ! BINGO
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