9/18/2019 · DDoS! It stands for distributed denial of service, a kind of attack that turns insecure, internet-connected devices into a sort of zombie army.
WS-Discovery is also useful for DDoS because a WS-Discovery response is larger than a WS-Discovery request, making the protocol a DDoS “amplifier”. Since an attacker needs less bandwidth and resources to send a request than the target needs to receive and process a response, this can help an attacker generate more attack traffic than their computer or network could manage.
8/27/2019 · What is WS-Discovery. WS-Discovery is a multicast protocol that can be used on local networks to discover other nearby devices that communicate via a particular protocol or interface.
8/27/2019 · The Web Services Dynamic Discovery (WS-Discovery) protocol could be exploited to launch large-scale DDoS attacks, security researchers are reporting. What is the WS-Discovery protocol? The WS-Discovery protocol is described as a technical specification that defines a multicast discovery protocol to locate services on a local network. It operates over TCP and UDP port 3702 and uses IP.
Secondly, the WS – Discovery response is many times larger than the original request. This allows attackers easily strengthen DDoS attacks. “ WS – Discovery was used in several DDoS attacks, whose amplification coefficient reached 300 and even 500. These are very alarming numbers, since the gain for other UDP protocols is usually on average 10.
9/5/2019 · That new weapon is the Web Service Dynamic Discovery protocol (WS-Discovery or WSD) as recently highlighted by Catalin Cimpanu in ZDNet. WS-Discovery is a multicast, UDP-based communications protocol for finding “who is near me.” WSD works similar to how UPnP makes finding and connecting to things in your home easier.
The WS-Discovery DDoS attack is yet another instance of a UDP based reflection attack like NTP and UPnP DDoS attack that are essentially all based on UDP. Mitigating these attacks is most effective with services that can deal with the volume these attacks generate – usually Scrubbing Center services and / or Content Distribution Networks (CDN).
Web Services Dynamic Discovery (WS-Discovery or WSD) is an UDP-based communications protocol used to automatically discover web-based services inside networks.
9/19/2019 · Thousands of internet connected devices, including, printers, cameras, DVRs, and other IoT gadgets can be used to amplify DDoS ( distributed denial-of-service) attacks. These devices are misconfigured to listen for, and respond to WS – Discovery protocol requests. WS – Discovery (WSD) is a communications protocol used to automatically discover internet connected devices inside of …
