Rooting Every Android From extension to exploitation

nmonkee

eu-16-Shen-Rooting-Every-Android-From-Extension-To-Exploitation

Agenda

• Overview

• Wi-Fi chipsets for Android

• WEXT Attack Surface Analysis

• Use device specific vulnerabilities to root them all

• Case Studies

• Stack overflow vulnerability in Qualcomm WEXT

• Data section overflow vulnerability in MTK WEXT

• Use-After-Free vulnerability in Broadcom WEXT

• Google’s latest mitigation

• Conclusion

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