Vpn-jantit-pptp Site

: The entire authentication exchange (challenges and responses) is sent in the clear, allowing an eavesdropper to capture the data needed for offline cracking.

Look for the MS-CHAPv2 authentication sequence. In Wireshark, you can filter for ppp.protocol == 0xc223 . You are looking for three specific packets: Challenge : The server sends a random nonce to the client. vpn-jantit-pptp

: Often visible in the PPP configuration or CHAP response. Peer Challenge : The 16-byte random value from the client. You are looking for three specific packets: Challenge

: The client sends its username and a hashed response (NT-Response). Success/Failure : Confirms if the credentials were correct. : The client sends its username and a

: The 16-byte random value from the server.

The challenge provides a PCAP file containing traffic from a PPTP VPN connection. PPTP is an older VPN protocol known for security vulnerabilities, particularly in its authentication phase, which often uses MS-CHAPv2. Step-by-Step Analysis

PPTP MS-CHAPv2 hashes can be cracked using tools like Hashcat or John the Ripper .