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Apple recently paid Indian vulnerability researcher Bhavuk Jain a huge $100,000 bug bounty for reporting a highly critical vulnerability affecting its ' Sign in with Apple ' system. The now-patched vulnerability could have allowed remote attackers to bypass authentication and take over targeted users' accounts on third-party services and apps that have been registered using 'Sign in with Apple' option. Launched last year at Apple's WWDC conference, ' Sign in with Apple ' feature was introduced to the world as a privacy-preserving login mechanism that allows users to sign up an account with 3rd-party apps without disclosing their actual email addresses (also used as Apple IDs). In an interview with The Hacker News, Bhavuk Jain revealed that the vulnerability he discovered resided in the way Apple was validating a user on the client-side before initiating a request from Apple's authentication servers. For those unaware, while authenticating

A critical authentication bypass vulnerability has been discovered in one of the biggest identity-as-a-service platform Auth0 that could have allowed a malicious attacker to access any portal or application, which are using Auth0 service for authentication. Auth0 offers token-based authentication solutions for a number of platforms including the ability to integrate social media authentication into an application. With over 2000 enterprise customers and managing 42 million logins every day and billions of login per month, Auth0 is one of the biggest identity platforms. While pentesting an application back in September 2017, researchers from security firm Cinta Infinita discovered a flaw ( CVE-2018-6873 ) in Auth0's Legacy Lock API , which resides due to improper validation of the JSON Web Tokens (JWT) audience parameter. Researchers successfully exploited this issue to bypass login authentication using a simple cross-site request forgery (CSRF/XSRF) attack against the