WebMay 19, 2024 · The RCTF 2024 (ctftime.org) ran from 19/05/2024, 09:00 UTC to 21/05/2024 08:59 UTC.. I wrote the following writeup for the crypto challenge cpushop. WebSep 3, 2024 · 首先分配几个堆块,把第0个free掉,Edit (1)修改chunk2的prev_size和size,再释放chunk2,0-2合并成一个大的unsorted bin。. Delete (1)让chunk1进入fastbin [0x70],Alloc (0x88)让fastbin的fd和bk被写入main_arena+88。. 注意此时这个fastbin存在size error,直接从中分配chunk会报错 ...
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http://yxfzedu.com/article/372 WebMay 22, 2024 · RCTF2024赛后总结 Rcalc. 程序入口. Input your name pls: 124sdf Hello 124sdf! Welcome to RCTF 2024!!! Let's try our smart calculator What do you want to do? 1.Add 2.Sub 3.Mod 4.Multi 5.Exit Your choice: WebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. cucumbers in air fryer