Malware Attack on CircleCI Engineer's Laptop Leads to Recent Security Incident

DevOps platform CircleCI on Friday disclosed that unidentified threat actors compromised an employee's laptop and leveraged malware to steal their two-factor authentication-backed credentials to breach the company's systems and data last month.

The CI/CD service CircleCI said the "sophisticated attack" took place on December 16, 2022, and that the malware went undetected by its antivirus software.

"The malware was able to execute session cookie theft, enabling them to impersonate the targeted employee in a remote location and then escalate access to a subset of our production systems," Rob Zuber, CircleCI's chief technology officer, said in an incident report.

Further analysis of the security lapse revealed that the unauthorized third-party pilfered data from a subset of its databases by abusing the elevated permissions granted to the targeted employee. This included customer environment variables, tokens, and keys.

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