Nov 2, 2021
96 Views
0 0

The Ping Is The Thing: Popular HTML5 Feature Used To Trick Chinese Mobile Users Into Joining Latest DDoS Attack.

Written by

DDoS attacks have always been a major threat to network infrastructure and web applications.
Attackers are always creating new ways to exploit legitimate services for malicious purposes, forcing us to constantly research DDoS attacks in our CDN to build advanced mitigations.
We recently investigated a DDoS attack which was generated mainly from users in Asia. In this case, attackers used a common HTML5 attribute, the tag ping, to trick these users to unwittingly participate in a major DDoS attack that flooded one web site with approximately 70 million requests in four hours.
Rather than a vulnerability, the attack relied on turning a legitimate feature into an attack tool. Also, almost all of the users enlisted in the attack were mobile users of the QQBrowser developed by the Chinese tech giant Tencent and used almost exclusively by Chinese speakers. Though it should be noted that this attack could have involved users of any web browser and that recent news could ensure that these attacks continue to grow — and we’ll explain why later in the article.
How They Did It
Ping is a command in HTML5 that specifies a list of URLs to be notified if the user follows a hyperlink. When the user clicks on the hyperlink, a POST request with the body “ping” will be sent to the URLs specified in the attribute. It will also include headers “Ping-From”, “Ping-To” and a “text/ping” content type.
 
The IT Security Guru offers a daily news digest of all the best breaking IT security news stories first thing in the morning! Rather than you having to trawl through all the news feeds to find out what’s cooking, you can quickly get everything you need from this site!

Our Address: 10 London Mews, London, W2 1HY
Follow Us
© 2015 – 2019 IT Security Guru – Website Managed by Calm Logic
© 2015 – 2019 IT Security Guru – Website Managed by Calm Logic
This site uses functional cookies and external scripts to improve your experience.
Privacy Settings / PENDING
This site uses functional cookies and external scripts to improve your experience. Which cookies and scripts are used and how they impact your visit is specified on the left. You may change your settings at any time. Your choices will not impact your visit.
NOTE: These settings will only apply to the browser and device you are currently using.
GDPR Compliance

source

Article Categories:
DDoS Attacks

Comments are closed.