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Port 500 Details
known port assignments and vulnerabilities
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 500 |
tcp,udp |
ipsec |
IPSec (VPN tunneling) uses the following ports:
500/udp - Internet Key Exchange (IKE)
4500/udp - NAT traversal
500/tcp - sometimes used for IKE over TCP
See also:
port 1701 (L2TP)
port 1723 (PPTP)
Some Apple applications use this port as well: Mac OS X Server VPN service, Back to My Mac (MobileMe, Mac OS X v10.5 or later).
Xbox 360 (LIVE) ports: 3074 TCP/UDP, 53 TCP/UDP, 80 TCP, 88 UDP
Xbox One (LIVE) ports: 3074 TCP/UDP, 53 TCP/UDP, 80 TCP, 88 UDP, 500 UDP, 3544 UDP, 4500 UDP
isakmp_sub_print in tcpdump 3.6 through 3.7.1 allows remote attackers to cause a denial of service (CPU consumption) via a certain malformed ISAKMP packet to UDP port 500, which causes tcpdump to enter an infinite loop.
References: [CVE-2003-0108] [BID-6974]
Microsoft Windows XP allows remote attackers to cause a denial of service (CPU consumption) by flooding UDP port 500 (ISAKMP).
References: [CVE-2002-2117]
Snapgear Lite+ firewall 1.5.3 allows remote attackers to cause a denial of service (IPSEC crash) via a zero length packet to UDP port 500.
References: [CVE-2002-0603] [BID-4659]
Cisco Wireless LAN Controller is vulnerable to a denial of service, caused by an error when handling Internet Key Exchange (IKE) messages. By sending a specially-crafted IKE packet to UDP Port 500, a remote attacker could exploit this vulnerability to cause the device to crash and reload.
References: [CVE-2010-0574] [XFDB-61666] [BID-43059]
A vulnerability in MikroTik Version 6.38.5 could allow an unauthenticated remote attacker to exhaust all available CPU via a flood of UDP packets on port 500 (used for L2TP over IPsec), preventing the affected router from accepting new connections; all devices will be disconnected from the router and all logs removed automatically.
References: [CVE-2017-8338], [XFDB-126179]
Vodafone Sure Signal also uses this port |
SG
|
| 500 |
udp |
|
Internet Security Association and Key Management Protocol (ISAKMP) (official) |
Wikipedia
|
| 500 |
tcp,udp |
isakmp |
VPN Key Exchange |
SANS
|
| 500 |
tcp,udp |
applications |
Bay VPN |
Portforward
|
| 500 |
udp |
threat |
Cisco Systems |
Bekkoame
|
| 500 |
tcp,udp |
isakmp |
isakmp |
IANA
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6 records found
Related ports: 123 259 264 1701 1723 4500
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