802.1x and Beyond!
summary
Demonstrates a practical attack chain against 802.1x/EAP and RADIUS: builds Peach-based Peach fuzzer models and custom publishers to fuzz EAP inside TLS, creates tooling (EP.NET, modified freeradius.net, radius E profile and eenum.exe), and finds multiple handler crashes. One flaw in Cisco ACS 4.2 leads to remote code execution over WPA‑Enterprise before client authorization; exploit reliably crashes and can be turned into RCE, vendor issues fixes after disclosure.
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chapters (25)
- 0:00Intro
- 0:21Who is Brad
- 1:17Agenda
- 1:54What is 802
- 5:24Playing around with 802
- 9:16EEP
- 10:48Decapsulation
- 11:07Radius
- 12:13Attack Surfaces
- 14:20Known Attacks
- 16:12Free Radius WPE
- 16:40Hostapd
- 18:27No Exploits
- 19:01Peach Fuzzer
- 19:43How it works
- 20:51RFCs
- 22:06Other publishers
- 23:32Free stuff
- 24:34Tools
- 25:55Profile
- 26:36Enumeration
- 26:59WP supplicant
- 27:29Notes for researchers
- 28:07Redirect program flow
- 28:49Exploit
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