pwndbg/docs/commands/leakfind/leakfind.md

leakfind

Description

Attempt to find a leak chain given a starting address. Scans memory near the given address, looks for pointers, and continues that process to attempt to find leaks.

Example: leakfind $rsp --page_name=filename --max_offset=0x48 --max_depth=6. This would look for any chains of leaks that point to a section in filename which begin near $rsp, are never 0x48 bytes further from a known pointer, and are a maximum length of 6.

Usage:

usage: leakfind [-h] [-p [PAGE_NAME]] [-o [MAX_OFFSET]] [-d [MAX_DEPTH]] [-s [STEP]] [--negative_offset [NEGATIVE_OFFSET]] [address]

Positional Arguments

Positional Argument	Help
address	Starting address to find a leak chain from (default: %(default)s)

Optional Arguments

Short	Long	Default	Help
-h	--help		show this help message and exit
-p	--page_name	None	Substring required to be part of the name of any found pages
-o	--max_offset	72	Max offset to add to addresses when looking for leak (default: %(default)s)
-d	--max_depth	4	Maximum depth to follow pointers to (default: %(default)s)
-s	--step	1	Step to add between pointers so they are considered. For example, if this is 4 it would only consider pointers at an offset divisible by 4 from the starting pointer (default: %(default)s)
	--negative_offset	0	Max negative offset to search before an address when looking for a leak (default: %(default)s)