Sergey Toshin tells us the story of how he became a top Android bug hunter and how he finds critical vulnerabilities. He also shows us a really cool vulnerability found in the Google Android Snapseed app. I didn't know this crazy attack vector exists!

Start Android Bug Hunting Here! Google App Scan Results: https://bughunters.google.com/report/targets/290590452

Google Mobile VRP: https://bughunters.google.com/about/rules/6618732618186752/google-mobile-vulnerability-reward-program-rules
Oversecured Blog: https://blog.oversecured.com/
Verify the output of tools: https://bughunters.google.com/learn/improving-your-reports/avoiding-mistakes/5981856648134656/verify-the-output-of-the-tools

More Bug Bounty Videos: https://www.youtube.com/playlist?list=PLhixgUqwRTjxKYsPTegCyL5adZaq5eILt
More Mobile Security: https://www.youtube.com/playlist?list=PLhixgUqwRTjxHFDl0OykeqZ-VvnClfDpT

Chapters:
00:00 - Intro
00:57 - Meet Sergey Toshin (Oversecured)
02:51 - How Oversecured Started
04:42 - Verify The Output of Tools!
07:17 - First Look at Vulnerability
09:58 - 1. Explained: Android Intents
11:25 - 2. Explained: Content Providers
12:51 - 3. Explained: App Permissions
13:34 - Exploit Walkthrough
16:17 - Proof of Concept and Report
17:15 - Android VRP Rewards
18:32 - Start Hunting for Bugs in Google Apps!

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LiveOverflow Transcript on Youtube

Secrets of an Android App Bug Hunter