DNS Zone Transfer using DNS Stateful Operations
Salesforce
Salesforce
NLnet Labs
Sinodun IT
Salesforce
DNS zone transfers are transmitted in clear text, which gives attackers the opportunity to collect the content of a zone by eavesdropping on network connections. This document specifies use of DNS Stateful Operations to enable a subscribe/publish mechanism for zone transfers reducing the over head introduced by NOTITY/SOA interactions prior to zone transfer request. This additionally prevents zone contents collection via passive monitoring of zone transfers by restricting XFR using DSO to require TLS.