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Information disclosure

Config, memory, firmware and location data escaping from things that were supposed to hold onto it.

2020

2016

patrik.re Archive

.htpasswd exposed, DES hash cracked

Directory brute-forcing a private bug bounty target turned up a world-readable .htpasswd whose descrypt hash, once cracked, opened four staging and development subdomains.

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.

patrik.re Archive

Stop OS X Spotlight Leaking Your Location

Proxying OS X Spotlight through Burp showed it shipping the user's latitude and longitude to api.smoot.apple.com on every search, with two ways to block the request.

2014

patrik.re Archive

Path Traversal on map.prezi.com ($1,000)

A path traversal issue on Prezi's map.prezi.com subdomain, fixed within two days of reporting and rewarded with a $1,000 bounty.

2013

patrik.re Archive

Yahoo's /14 and an exposed phpinfo.php

Pivoting from Yahoo's main A record to its ARIN netblock and sweeping all 260,000 addresses in the /14 for an exposed phpinfo.php.