SSL Pinning Bypass – Android

[carlospolop]

🤖 Automated Content Update

This PR was automatically generated by the HackTricks News Bot based on a technical blog post.

📝 Source Information

• Blog URL: https://hardsoftsecurity.es/index.php/2025/11/26/ssl-pinning-bypass-android/
• Blog Title: SSL Pinning Bypass – Android
• Suggested Section: Mobile Pentesting -> Android Applications Pentesting (new subpage like 'Android SSL Pinning Bypass with Frida & System CA Manipulation')

🎯 Content Summary

This post is a hands-on guide to bypassing SSL/TLS certificate pinning in Android apps to intercept and modify HTTPS traffic during penetration tests. It first explains how SSL/TLS normally works on Android and why pinning breaks classic MITM interception with Burp Suite or OWASP ZAP.

How SSL/TLS pinning works
Under normal HTTPS operation, an Android device validates the server certificate against the OS trust store of Root Certificate Authorities (CAs). Inst...

🔧 Technical Details

Trick 1 – Turn the Android system trust store into a MITM enabler
Install your interception proxy’s CA (e.g., Burp Suite CA) directly into the Android system trust store so every non-pinned app will trust your dynamically generated certificates. Convert/export the CA to the hashed filename format (9a5ba575.0-style), then push and install it with:
adb push 9a5ba575.0 /tmp/9a5ba575.0
adb -s emulator-name shell
mv /tmp/9a5ba575.0 /system/etc/security/cacerts/
chmod 644 /system/etc/security/cacerts/9a5ba575.0
reboot
After reboot, any app that relies solely on the system trust store will accept your MITM proxy certificates, allowing interception and modification of HTTPS traffic without further in-app changes.

Trick 2 – Use Frida to dynamically bypass SSL pinning in Android apps
Leverage Frida to hook SSL/TLS-related functions...

🤖 Agent Actions

Summary:

• Expanded src/mobile-pentesting/android-app-pentesting/flutter.md with a “Quick Flutter TLS bypass workflow” section detailing how to combine system CA installation, frida-server deployment, Codeshare script execution, and proxy configuration to defeat Flutter TLS pinning, aligning with the blog’s methodology.
• Added the blog URL as a new reference for the Flutter page.

No additional changes were necessary.

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This PR was automatically created by the HackTricks Feed Bot. Please review the changes carefully before merging.

[carlospolop]

🔗 Additional Context

Original Blog Post: https://hardsoftsecurity.es/index.php/2025/11/26/ssl-pinning-bypass-android/

Content Categories: Based on the analysis, this content was categorized under "Mobile Pentesting -> Android Applications Pentesting (new subpage like 'Android SSL Pinning Bypass with Frida & System CA Manipulation')".

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Bot Version: HackTricks News Bot v1.0

[carlospolop]

merge