Recent Posts

How a double-free bug in WhatsApp turns to RCE

  14 minute read

In this blog post, I’m going to share about a double-free vulnerability that I discovered in WhatsApp for Android, and how I turned it into an RCE. I informe...

DoS Wechat with an emoji

  1 minute read

This DoS bug was reported to Tencent, but they decided not to fix because it’s not critical. The Common Vulnerabilities and Exposures (CVE) Program has assig...

RB App Checker

  less than 1 minute read

This tiny yet powerful app lets us check the iOS application for the certificates, requirements and entitlements, embedded provisioning profiles, auxiliary e...

Install a trusted CA in Android N

  1 minute read

It’s very trivial to install a user-trusted certificate on Android. Under Settings -> Security you can install new trusted certificates. However, this cre...

Handy Android code snippets

  less than 1 minute read

This blog post is a memo of handy Android code snippets that I found particularly useful in programming and hacking.