CVE-2020-10136

A flaw was found in the IP-in-IP protocol. An unauthenticated attacker can use the IP-in-IP protocol to route network traffic through a vulnerable device, which can lead to spoofing, access control bypasses, and other unexpected network behaviors. Mitigation Systems that have IP in IP kernel...

Internet Bug Bounty: IP-in-IP protocol routes arbitrary traffic by default - CVE-2020-10136

Many machines 150K-180K on the internet accept and route IP over IP by default. IP-in-IP encapsulation is a tunneling protocol specified in RFC 2003 that allows for IP packets to be encapsulated inside another IP packets. This is very similar to IPSEC VPNs in tunnel mode, except in the case of...

IP-in-IP protocol routes arbitrary traffic by default

Overview IP Encapsulation within IP RFC2003 IP-in-IP can be abused by an unauthenticated attacker to unexpectedly route arbitrary network traffic through a vulnerable device. Description IP-in-IP encapsulation is a tunneling protocol specified in RFC 2003 that allows for IP packets to be...