When Everyone's Dog is Named Fluffy - Abusing the Brand New Security Questions in Windows to Gain Domain-Wide Persistence

Explore an effective approach for creating persistence by exploiting vulnerabilities in Windows 10's security questions feature in this 23-minute Black Hat conference talk. Delve into how a well-intended security measure can become a potential threat, as presenters Magal Baz and Tom Sela demonstrate the risks associated with this feature introduced in April. Learn about LSA Secrets, their encryption and permissions, and how they relate to the new security questions. Discover remote LSA Secrets read/write implementations, remote password reset techniques, and methods to restore previous passwords. Witness a live demonstration of the exploit and gain valuable insights into recommendations for mitigating these security risks.

Intro
The story begins
Windows Security Questions Feature Overview
Usage
The History of Security Questions
Windows Passwords vs. Security Questions
Security Attack Scenarios
Roadmap
LSA Secrets Introduction
LSA Secrets Encryption
LSA Secrets Permissions
blackhat Security Question LSA Secret
Remote LSA Secrets Read/Write Implementations
Remote Password Reset
Restore Previous Password
Demo
Goal Achieved
Recommendations