NatJack: NAT Manipulation Enables TCP Hijack and DNS Spoofing

Fri, 07 Aug 2026 11:54:55 +0000

Engineer — Learn: Novel attack class affecting multiple NAT implementations including Windows — no active exploitation or patches announced yet, so monitor for vendor advisories and evaluate whether firewall rule hardening or NAT timeout tuning applies to your perimeter.
SOC/IR — Learn: NatJack introduces TCP session hijacking and DNS spoofing via NAT state manipulation; no IOCs or ATT&CK-mapped TTPs are available yet, so track for detection research as the community digests the Black Hat presentation.
Leader — Skip

Dns-Spoofing on CuraSec