Relay

Is TLS more secure? The WinRMS case.

14 April 2025 ~8 min By Aurelien Chalot
Active Directory Ntlm Relay Winrm
WinRM is protected against NTLMRelay as communications are encrypted. However WinRMS (the one communicating over HTTPS) is not entirely. That said, WinRMS is not configured on a default server installation (while WinRM is). So, if someone tried to harden their servers’ configurations (by removing the HTTP endpoint), they would open a new possible target that can be used to relay HTTP/SMB and LDAP NTLMv1 only authentications to WinRMS and thus…

PEAP Relay Attacks with wpa_sycophant

25 June 2019 ~7 min By Michael Kruger
Defcon Relay Rogue-Ap Tool Wifi
Back in 2018, I was interested that MSCHAPv2 and NTLMv1 hashes crack using the same algorithms, and wanting to get onto the WiFi of one of our clients, I naively thought “Surely if you can relay NTLMv1 and it uses the same crypto as MSCHAPv2, you should be able to relay MSCHAPv2!”. The resulted in the creation of wpa_sycophant (and its helper berate_ap) to perform PEAP relay attacks. It was…