memcached udp amplification attack

1. What is Memcached amplification attack?
2. Does memcached use UDP?
3. What is Memcached attack?
4. What is UDP amplification?
5. Is Memcache secure?
6. Is Redis faster than Memcached?
7. Is Memcached still used?
8. What is UDP reflection?
9. What is the largest DDoS attack?
10. What is a memcached server?
11. How can we prevent Memcaching?
12. What are the common types of DDoS attack?
13. What is amplification attack?
14. What protocols are prone to amplification?

What is Memcached amplification attack?

A memcached distributed denial-of-service (DDoS) attack is a type of cyber attack in which an attacker attempts to overload a targeted victim with internet traffic. ... *Memcached is a database caching system for speeding up websites and networks.

Does memcached use UDP?

The memcached protocol over UDP has a huge amplification factor, of more than 51000. Victims of the DDoS attacks include GitHub, which was flooded with 1.35 Tbit/s peak incoming traffic.

What is Memcached attack?

A Memcached Distributed Denial of Service (DDoS) attack is a cyber attack aimed at Memcached, a database caching system designed to speed up websites and networks. It works by flooding a website or application with traffic to crash the servers.

What is UDP amplification?

Through a technique called UDP amplification, a departure from the blueprint for most major DDoS assaults in recent memory, which relied on botnets of IoT devices. ... DDoS attackers can take advantage of this by sending UDP requests to public internet servers using the victim's IP address as the source of the packet.

Is Memcache secure?

A better reason to do this is to protect your data. Memcached out of the box doesn't use authentication so anyone who can connect to your server will be able to read your data. While this is enough to secure your memcached server, there are a few more best practices you can follow.

Is Redis faster than Memcached?

Redis only uses single cores while Memcached utilizes multiple cores. So on average, Redis boasts a higher performance than Memcached in small data storage when measured in terms of cores. Memcached outperforms Redis for storing data of 100k or above.

Is Memcached still used?

The primary cache is still Memcached, and Redis is used for its data structures based logical caching. As of 2014, why is memcached still worth the pain to be added as additional component into your stack, when you already have a Redis component which can do everything that memcached can?

What is UDP reflection?

UDP reflection attacks exploit the fact that UDP is a stateless protocol. ... An attacker then sends the UDP packet containing the spoofed source IP to an intermediate server. The server is tricked into sending its UDP response packets to the targeted victim IP rather than back to the attacker's IP address.

What is the largest DDoS attack?

The Mirai Krebs and OVH DDoS Attacks in 2016

On September 20, 2016, the blog of cybersecurity expert Brian Krebs was assaulted by a DDoS attack in excess of 620 Gbps, which at the time, was the largest attack ever seen.

What is a memcached server?

Memcached servers allow applications that need to access a lot of data from an external database to cache some of the data in memory, which can be accessed much more quickly by the application than having to travel out to the database to fetch something important.

How can we prevent Memcaching?

Restrict Memcached to localhost

One of the easiest ways to prevent your Memcached servers from being abused is to bind Memcached to localhost and disable UDP on source port 11211. You can adjust the service parameters for Memcached servers.

What are the common types of DDoS attack?

Common DDoS attacks types

• ICMP (Ping) Flood.
• SYN Flood.
• Ping of Death.
• Slowloris.
• NTP Amplification.
• HTTP Flood.
• Zero-day DDoS Attacks.
• Volume Based Attacks. Imperva counters these attacks by absorbing them with a global network of scrubbing centers that scale, on demand, to counter multi-gigabyte DDoS attacks.

What is amplification attack?

An Amplification Attack is any attack where an attacker is able to use an amplification factor to multiply its power. ... Examples of amplification attacks include Smurf Attacks (ICMP amplification), Fraggle Attacks (UDP amplification), and DNS Amplification.

What protocols are prone to amplification?

Besides DNS, there are many other UDP-based protocols (NTP, CharGEN, Memcached, to name a few) that are also susceptible to amplification attacks, many at a far greater amplification factor.