A Simple Service Discovery Protocol (SSDP) attack is a reactive, distributed denial-of – service (DDoS) attack that can manipulate Universal Plug and Play (UPnP) networking protocols to send an enormous amount of traffic to a targeted victim, overwhelm the infrastructure of the target and take its web resource offline.
How does an SSDP Attack Work?
The SSDP protocol is typically used to allow UPnP devices to broadcast their presence over the network to other devices. For example, if a UPnP printer is connected to a network and receives an IP address, the printer advertises its services to the network’s computers by sending a message to a special IP address known as a multicast. The multicast address is then responsible for telling the new printer to all the computers on the network. After receiving the message of discovery a computer asks the printer to obtain a full list of its facilities. Then the printer responds with this list directly back to the computer. An attack by SSDP exploits the final service request by directing the system to respond to the targeted victim.
Steps of Traditional DDoS SSDP Attack
What’s happening during a typical SSDP DDoS attack here is:
• The intruder searches, finding plug-and – play tools which can be used as amplification factors.
• Finding networked devices, the attacker creates a list of all the devices that react.
• The attacker makes a UDP packet containing the target victim’s spoofed IP address.
• By setting specific flags, especially ssdp: rootdevice or ssdp: all, the attacker uses a botnet to send a spoofed discovery packet to each plug-and-play device with the request for as much data as possible.
• Each system sends a response to the targeted victim with data up to 30 times greater than that requested by the attacker.
• The target receives a huge amount of traffic from all the devices and gets overloaded, probably leading to a denial of service to legitimate traffic;
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