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昨日は海を見に行きました

race condition

2021-02-22

【pwn 51.0】nutty - Union CTF 2021 [maybe not intended sol] (kernel exploit)

keywords kernel exploit / race without uffd / SLOB / seq_operations / tty_struct / bypass SMAP via kROP on kheap 1: イントロ 2: static basic module 3: Vuln kUAF / double fetch invalid show size 4: leak kernbase race via userfaultfd (FAIL) …

2021-02-15

【pwn 48.0】hashbrown - Dice CTF 2021 (kernel exploit)

pwn - Dice CTF heap kernel exploitation race condition

keywords kernel exploit / FGKASLR / slab / race condition / modprobe_path / shm_file_data / kUAF / shmem_vm_ops 1: イントロ 2: static basic Module 3: FGKASLR 4: Vuln: race to kUAF 5: leak and bypass FGKASLR via shm_file_data なんでseq_oper…

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