New to ASM Platform: Dashboard, on-demand remediation validation and integrations

    We are happy to announce a feature release that includes a new dashboard, on-demand remediation validation, and integrations for Jira and Tenable.sc for our Attack Surface Management (ASM) platform. The release and improvements came from prioritizing user experience and working customer feedback into development for the ASM platform. With the addition of these features, Censys […]

    Lightweight Protocol Scanning

    Traditionally, Censys has focused on “deep” scans — scans which do a full analysis of the service behind them and break out key values into fields to be searched on later. Some protocols were captured by banner grabs of “UNKNOWN” services and were just untagged, making them searchable but not easily. For example, IRC servers […]

    1, 2, 3 Owned: New Microsoft Exchange Vulnerabilities

    Chained vulnerabilities lead to remote command execution Authors: Mark Ellzey, Greg Gaylor  What is the Issue? The ProxyLogon vulnerabilities, publicly disclosed in March and discussed in our blog post Microsoft Exchange 0-day Vulnerabilities, have since been patched, but a similar Microsoft Exchange attack has been discovered. DEVCORE Researcher “Orange Tsai” published their findings of a […]

    Custom attribution for your attack surface using the Censys Python CLI

    Censys has introduced a new add-seeds CLI command for the censys-python project that enables customers to automate adding seeds to their attack surface based on search terms from Censys Search. This is an extremely powerful means of customizing your attack surface. Finding unknowns is hard An organization’s attack surface can be complex. With hosts […]

    It’s Raining Buckets: The Importance of Cloud Storage Configurations

    In 2017, a Verizon Wireless partner unintentionally misconfigured access controls for an Amazon S3 service, exposing an approximate 6 million records containing customer names, contact information, home addresses, account financials, and even account pins. Verizon was privately informed of the exposure on June 13th, 2017, and the misconfiguration was remediated on the 22nd. While […]

    What To Look For in an Attack Surface Management Solution

    Your External Attack Surface Is More Important Than Ever In 2020, an estimated 73% of cybersecurity incidents involved external cloud assets, according to the Verizon Data Breach Investigations Report. The disappearance of network perimeters, rise of shadow IT, and exposure from small cloud misconfigurations have fundamentally changed how data breaches occur in practice and shifted […]

    Exposed Outlets: Don’t Let Attackers Turn You Off

    Censys uncovered over 2,000 devices whose primary purpose is to manage and monitor a system’s electrical sockets remotely. In many cases, the only thing between a server’s physical off-button and a malicious user is a simple login form, and in a handful of cases, no authentication or security at all. As engineers, we often talk […]

    Quick Guide: Using New Search 2.0 to Identify SolarWinds Orion Infrastructure

    This is a quick guide with translated query syntax for the new Censys Search 2.0 which is free for community users. The following queries help practitioners identify potential assets and other infrastructure associated with SolarWinds Orion. For more information about the SolarWinds incident and global impact, please see our detailed write-up here. 1. Find exposed […]

    5 Reasons Security Teams Should Be Investing in Attack Surface Management

    There is a rapid transformation underway and that is the migration into the cloud. The traditional on-premise environment has been redefined as organizations migrate to cloud environments and the need for a remote workforce increases. To address these changes with an evolving security posture, organizations must start with the foundation — knowing what you need […]

    Solidarity with our Black Employees & Community

    Daunte Wright Tragedy We would like to address the tragic news of the death of Daunte Wright at the hands of police in Brooklyn Center, MN. As a company, we do not condone police violence. We grieve for this loss, and for the pain and suffering of Mr. Wright’s family, friends and community. Mr. Wright’s […]

    Mind the (Security) Gap: ASM as a Critical Function During Mergers & Acquisitions

    An Overview A PWC report on global M&A trends for 2020 noted that the “pandemic and recent geopolitical developments have already led most companies to the same conclusions, pushing both deal volumes and values higher … particularly for digital and technology assets”.  In this blog, I will highlight key benefits of attack surface management when […]

    More Critical RCE’s, Assessing the Impact of F5 Vulnerabilities

    What is the issue? On March 10, 2021, a security advisory was released by F5 including 7 vulnerabilities, 4 of which are critical remote code execution vulnerabilities impacting all BIG-IP modules and a significant number of BIG-IQ products. On March 10, 2021, Censys identified 440,882 distinct hosts running BIG-IP products around the globe, indicating significant […]

    Assessing VMware vCenter RCE Impact across the Globe

    What’s the issue? Three vulnerabilities were recently released by VMware’s security advisory and impact vCenter Server or ESXi — CVE-2021-21972, CVE-2021-21973, CVE-2021-21974. Impacted Versions of vCenter: Impacted Versions of ESXi: However, CVE-2021-21972 is a critical remote code execution vulnerability according to Tenable. Using the data that powers our ASM Platform, the Censys team found  6,868 […]

    Moving Beyond the Noise by Filtering Internet Pseudo Services

    About a year ago, Censys began scanning public IPv4 addresses on 2,000 ephemeral ports in addition to ports with popular IANA-assigned services. We’ve found that an astounding number of services run on unassigned ports. We also found that many protocols run on ports assigned to other services. In response, we’ve changed our approach to scanning […]

    A Guide to Assessing Your Shared Web Hosting Footprint

    When walking customers and prospects through their attack surface, as discovered by the Censys Attack Surface Management (ASM) Platform, one of the biggest surprises tends to be the number of web hosting providers that are affiliated with their organization. Censys can help highlight both the knowns and unknowns of your web hosting footprint. Our research […]

    From Hunting the Adversary to Hunting your Organization’s Infrastructure

    Do you use Censys? Have you ever used Censys Search? Chances are, if you’re a threat hunter or security researcher, the answer is yes. Every week Censys Search has thousands of active users, the vast majority are threat hunters and information security researchers. Censys Search, our complimentary offering, is a valuable tool to track down […]

    Assessing Internet-wide Exposure to the SolarWinds Compromise

    This blog post was last updated on: February 1, 2021 This will be the last blog update summarizing our visibility of Internet-facing Orion hosts from mid-December through January 2021. Censys has continued to update this blog with the purpose of understanding global trends and impact around Internet-facing Orion hosts. As of January 31, 2021, Censys […]