In the previous sharing, we learned about some misunderstandings and security risks related to identity authentication and also gained some understanding of blind spots related to Activity identity authentication and Broadcast identity authentication. Click to read the details: "(Ⅰ) Android Identity Authentication: A Cat and Mouse Game between Developers and Hackers"
This article will focus on identity authentication-related topics within applications and system services, while also proposing some effective security practices. These practices aim to help developers resist related security risks during the development process and enhance the security of product services.
5. The "Trap" of Service Identity Authentication
- 5.1 Cat-and-Mouse Game: How Hackers Attack Services
- 5.2 Barking Up the Wrong Tree: Authentication on the Client Side
- 5.3 Carving a Boat to Find a Sword: Authentication in onBind
- 5.4 Setting Your Own Trap: Misuse of clearCallingIdentity
- 5.5 Passing Off as Genuine: Package Name Forgery
- 5.6 Going in the Wrong Direction: Misuse of Authentication APIs
- 5.7 Self-Destruction: Missing Permissions for Special Interfaces
6. Summary: How to Win in This Cat-and-Mouse Game
① Ensure the authenticity and validity of the counterpart's identity, and beware of identity authentication "illusions" and "blind spots."
② Authenticate all interfaces on the server side, except in special cases.
③ Use system APIs correctly and appropriately, paying attention to special cases.
④ Ensure permission matching in class inheritance relationships.
⑤ Treat all inputs as untrusted; package name verification must ensure the authenticity of inputs.
Click here to know the details: (Ⅱ) Android Identity Authentication: A Game of Cat and Mouse between Developers and "Hackers"
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