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Friday, September 24, 2021
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CISA-FBI Guidance for MSPs and Their Customers Affected by the Kaseya VSA Supply-Chain Ransomware Attack

CISA and the Federal Bureau of Investigation (FBI) continue to respond to the recent supply-chain ransomware attack leveraging a vulnerability in Kaseya VSA software against multiple managed service providers (MSPs) and their customers. CISA and FBI strongly urge affected MSPs and their customers to follow the guidance below.

CISA and FBI recommend affected MSPs:

  • Download the Kaseya VSA Detection Tool. This tool analyzes a system (either VSA server or managed endpoint) and determines whether any indicators of compromise (IoC) are present.
  • Enable and enforce multi-factor authentication (MFA) on every single account that is under the control of the organization, and—to the maximum extent possible—enable and enforce MFA for customer-facing services.
  • Implement allowlisting to limit communication with remote monitoring and management (RMM) capabilities to known IP address pairs, and/or
  • Place administrative interfaces of RMM behind a virtual private network (VPN) or a firewall on a dedicated administrative network.

CISA and FBI recommend MSP customers affected by this attack take immediate action to implement the following cybersecurity best practices. Note: these actions are especially important for MSP customers who do not currently have their RMM service running due to the Kaseya attack.

CISA and FBI recommend affected MSP customers:

  • Ensure backups are up to date and stored in an easily retrievable location that is air-gapped from the organizational network;
  • Revert to a manual patch management process that follows vendor remediation guidance, including the installation of new patches as soon as they become available;
  • Implement:
    • Multi-factor authentication; and
    • Principle of least privilege on key network resources admin accounts.

Resources:

CISA and FBI provide these resources for the reader’s awareness.  CISA and FBI do not endorse any non-governmental entities nor guarantee the accuracy of the linked resources.

Read more at CISA

Homeland Security Todayhttp://www.hstoday.us
The Government Technology & Services Coalition's Homeland Security Today (HSToday) is the premier news and information resource for the homeland security community, dedicated to elevating the discussions and insights that can support a safe and secure nation. A non-profit magazine and media platform, HSToday provides readers with the whole story, placing facts and comments in context to inform debate and drive realistic solutions to some of the nation’s most vexing security challenges.

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