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The Art of Exploiting UAF by Ret2bpf in Android Kernel
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- 1 Intro
- 2 xt_qtaguld - Introduction
- 3 xt_qtagulud Open Device
- 4 CVE-2017-13273
- 5 eventfd leaks kernel heap address
- 6 Step 1 - Double Free on kmalloc-128
- 7 KASLR Leak
- 8 Rooting (possible primitives)
- 9 Step 3 - Rooting (controlling seq_operations)
- 10 Step 3 - Rooting (overwriting addr_limit?)
- 11 Step 3 - Rooting (the ultimate ROP)
- 12 Step 3 - Rooting (root shell)
- 13 Summarization for Exploiting CVE-2021-0399
- 14 CONFIG_SLAB_FREELIST HARDENED
- 15 KFENCE
- 16 Kernel Control Flow Integrity
- 17 CONFIG_DEBUG_LIST
- 18 On-Device Protection
- 19 Backend Infrastructure
- 20 Behavioural Detection
- 21 Summary
