Supply Chain Compromise

Release Date

CISA is tracking a significant cyber incident impacting enterprise networks across federal, state, and local governments, as well as critical infrastructure entities and other private sector organizations. An advanced persistent threat (APT) actor is responsible for compromising the SolarWinds Orion software supply chain, as well as widespread abuse of commonly used authentication mechanisms. This threat actor has the resources, patience, and expertise to gain access to and privileges over highly sensitive information if left unchecked. CISA urges organizations to prioritize measures to identify and address this threat.

Pursuant to Presidential Policy Directive (PPD) 41, CISA, the Federal Bureau of Investigation (FBI) and the Office of the Director of National Intelligence (ODNI) have formed a Cyber Unified Coordination Group (UCG) to coordinate a whole-of-government response to this significant cyber incident.

CISA also remains in regular contact with public and private sector stakeholders and international partners, providing technical assistance upon request, and making information and resources available to help those affected to recover quickly from incidents related to this campaign.

CISA encourages individuals and organizations to refer to the resources below for additional information on this compromise. These resources provide information to help organizations detect and prevent this activity.

CISA Hunt and Incident Response Program (CHIRP)

CISA released the CISA Hunt and Incident Response Program (CHIRP), a forensics collection capability outlined in Activity Alert AA21-077A and available on CISA’s CHIRP GitHub repository. This capability was developed to assist network defenders with detecting advanced persistent threat (APT) activity related to the SolarWinds and Active Directory/M365 compromise. The initial release of CHIRP scans for signs of APT compromise within an on-premises environment to detect indicators of compromise (IOCs) associated with CISA Alerts AA20-352A and AA21-008A.

Emergency Directive and Update

On January 6, 2021, CISA Released Supplemental Guidance on Emergency Directive 21-01 that requires (1) agencies that ran affected versions conduct forensic analysis, (2) agencies that accept the risk of running SolarWinds Orion comply with certain hardening requirements, and (3) reporting by agency from department-level Chief Information Officers (CIOs) by Tuesday, January 19, and Monday, January 25, 2020.

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Alerts and Guidance

CISA's Alerts and Advisories provides more information about this and related cyber incidents. 

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