Information disclosure -> 2fa bypass -> POST exploitation

Program: algolia Bug Type: MFA Bounty: Unspecified Date: 2021-07-23
2FA MFA-bypass

Summary

The researcher found vulnerability in a webapp that let's an attacker bypass 2FA by knowning a sensitive secret - gauth_secret that is leaked on the response when requesting 2FA renew from an account. The leaked gauth_secret could be used on google authenticator to create codes that can directly be used to pass MFA. Although it doesn't have a direct impact, a account takeover is possible if the gauth_token of a user is leaked somehow.

References