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Port 4500 Details


known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
4500 udp ipsec IPSec (VPN tunneling) uses the following ports:

50 - Encapsulation Header (ESP)
51 - Authentication Header (AH)
500/udp - Internet Key Exchange (IKE)
4500/udp - NAT traversal

See also:
port 1701 (L2TP)
port 1723 (PPTP)

Mac OS X Server VPN service, Back to My Mac (MobileMe, Mac OS X v10.5 or later), Vodafone Sure Signal also use this port.

Abacast peer-to-peer audio and video streaming also uses port 4500 (TCP/UDP)

Unspecified vulnerability in Cisco ASA 5500 Series Adaptive Security Appliance 7.0 and Cisco PIX 500 Series Security Appliance allows remote attackers to cause a denial of service (active IPsec tunnel loss and prevention of new tunnels) via a malformed IKE message through an existing tunnel to UDP port 4500, aka Bug ID CSCtc47782.
References: [CVE-2010-0567], [BID-38279]
SG
4500 udp IPSec NAT Traversal (RFC 3947) (official) Wikipedia
4500 tcp,udp sae-urn SANS
4500 tcp sae-urn sae-urn Nmap
4500 udp nat-t-ike IKE Nat Traversal negotiation (RFC3947) Nmap
4500 tcp,udp sae-urn sae-urn Neophasis
4500 tcp,udp ipsec-nat-t IPsec NAT-Traversal Bekkoame
4500 tcp ipsec-nat-t IPsec NAT-Traversal [RFC8229] , modified: 2017-06-19 IANA
4500 udp ipsec-nat-t IPsec NAT-Traversal [RFC3948][RFC7296] , modified: 2017-07-07 IANA
9 records found

Related ports: 50  123  500  1701  1723  

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