Here’s a New Free Tool to Discover Unprotected Cloud Storage Instances


The IDC cloud security survey 2021 states that as many as 98% of companies were victims of a cloud data breach within the past 18 months.

Fostered by the pandemic, small and large organizations from all over the world are migrating their data and infrastructure into a public cloud, while often underestimating novel and cloud-specific security or privacy issues.

Nearly every morning, the headlines are full of sensational news about tens of millions of health or financial records being found in unprotected cloud storage like AWS S3 buckets, Microsoft Azure blobs or another cloud-native storage service by the growing number of smaller cloud security providers.

ImmuniWeb, a rapidly growing application security vendor that offers a variety of AI-driven products, has announced this week that its free Community Edition, running over 150,000 daily security tests, now has one more online tool – cloud security test.

To check your unprotected cloud storage, you just need to enter your main website URL and wait a few minutes:

ImmuniWeb says that the free test detects cloud storage from 19 cloud service providers, including AWS, Azure and GCP. You can see in the results the region or country your cloud data is stored for the purpose of compliance with GDPR or other national privacy laws and regulations.

According to ImmuniWeb, the technology behind the test leverages OSINT, big data and smart prediction technology based on Machine Learning to discover unprotected cloud buckets belonging to your company.

To prevent using its new tool for potentially malicious purposes, free registration and account validation are required to gather the URLs of your exposed cloud buckets. The tool is also equipped with a free API available after registration for DevOps and cybersecurity teams.

An awesome differentiator of ImmuniWeb’s cloud security test is that you don’t need to enter your cloud credentials, contrasted to most open-sourced or commercial cloud monitoring tools that require IAM credentials to enumerate your cloud assets and instances. Another feature that we liked is coverage of medium-sized cloud service providers, such as Oracle Cloud or IBM Cloud.

Moreover, many regional players like SberCloud from Russia or Chinese Alibaba Cloud are also on the radar, helping organizations to detect regional cloud presence or shadow cloud accounts:

ImmuniWeb also provides a paid version of all-in-one Attack Surface Management (ASM) and Dark Web Monitoring solution ImmuniWeb Discovery. ImmuniWeb claims that Discovery detects considerably more external cloud assets, encompassing cloud-based load balancers, databases, repositories, container management and orchestration software being exposed to the Internet. The on-premises and cloud-based IT assets are then correlated with the Dark Web findings to provide a threat-aware risk scoring to the customers who may also use Discovery to assess their suppliers and prevent supply chain attacks.

Cloud ASM has become an extremely hot topic in 2021 for end-users, vendors, and investors. In July, Microsoft announced its acquisition of another market player RiskIQ for more than $500 million, while Mandiant has recently absorbed Intrigue, an ASM startup, known for its open-sourced version.

ImmuniWeb promises in its press release “many more exciting features soon”, so we will keep an eye on their ongoing efforts and awesome tools they share with the cybersecurity community. To prevent your cloud data from being exposed on the Internet, consider implementing CIS Benchmarks for Cloud and then run ImmuniWeb free cloud security test to validate your security controls.

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