↓ Skip to main content

JFFS2

Carving a JFFS2 flash filesystem out of a firmware image with dd and jffs2dump.

All tags →Browse by topic →

2015

patrik.re

Shopify POS firmware: extracting a root hash

An in-scope Shopify POS endpoint exposed the card reader's firmware bundles, which unpack via binwalk, a dd carve at 0x202024 and jffs2dump into a JFFS2 root filesystem containing a salted MD5 root hash.