pwnProeasy

Куча подарков (Heap of Gifts)

hackerlab

Task: New Year gift selection program with heap-based storage. Solution: Out-of-bounds array read via input 0 causes integer underflow in indexing formula, reading ptr_gifts[-1] which contains the real flag pointer.

$ ls tags/ techniques/
heapout_of_boundsoob_readarray_indexinginteger_underflow
oob_array_readheap_metadata_read
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