SeleniumGreed Cryptomining Campaign Exploiting Grid Services | Wiz Blog
SeleniumGreed is an active crypto-mining campaign targeting older versions of Grid services. Explore the risks, attack methods, and essential security measures. Wiz Research has detected an ongoing threat campaign that exploits exposed Selenium Grid services for cryptomining, dubbed “SeleniumGreed”. Selenium is among the most commonly used testing frameworks. Our data shows that the technology can be found in 30% of cloud environments, and the official selenium/hub docker image has over 100 million pulls in Docker Hub. Unbeknownst to most users, Selenium WebDriver API enables full interaction with the machine itself, including reading and downloading files, and running remote commands. By default, authentication is not enabled for this service. This means that many publicly accessible instances are misconfigured and can be accessed by anyone and abused for malicious purposes. We have identified a threat actor targeting publicly exposed instances of Selenium Grid and leveraging features of Selenium WebDriver API to run Python with a reverse shell to deploy scripts that download a XMRig miner. The threat actor is still active as of this blog post’s date of publication. * We believe this is the first documentation of this misconfiguration being exploited in the wild.
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