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Reverse Engineering - Offload Handlers
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Classroom Contents
Exploiting Qualcomm WLAN and Modem Over The Air
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- 1 Intro
- 2 MBA and Modem images
- 3 Modem Secure Boot
- 4 TOCTOU Vulnerability Bypass Secure Boot
- 5 Debug Server Injection
- 6 Qualcomm WLAN Architecture
- 7 Example - WIFI List
- 8 Firmware
- 9 Reverse Engineering - Hint From Qualcomm
- 10 Reverse Engineering - Offload Handlers
- 11 Sample Offload Handler
- 12 The Roadmap
- 13 Mitigation Table (WLAN & Modem)
- 14 The Vulnerability (CVE-2019-10540)
- 15 Data & Address of Overflow
- 16 Smart Pointer Around Overflow Memory
- 17 Usage Of Smart Pointer
- 18 Global Write With Constraint
- 19 Control PC & RO
- 20 Transform To Arbitrary Write
- 21 Run Useful FOP Gadget
- 22 Memory Mapping RWX
- 23 Copy Shellcode to 0x42420000
- 24 Trigger Shellcode
- 25 From WLAN to Modem
- 26 Map Modem Memory into WLAN
- 27 The Attack Surfaces
- 28 Memory Management of Qualcomm Multi-Processor
- 29 CVE-2019-10538
- 30 Deliver the Payload Over-The-Air
- 31 Deliver the Payloads Using Pixel2
- 32 Demo
- 33 Future Works
