Xygeni GitHub Action Compromised Via Tag Poison
Attackers operated an active C2 implant for up to a week and compromised AppSec vendor Xygeni's xygeni/xygeni-action in that time.
Stay informed about the latest Github infosec updates, security breaches, and protection strategies with our comprehensive information security news.
Search across headline titles and summaries.
Background for this topic.
GitHub is a hosted software-development platform built around Git repositories. It supports public and private source-code hosting, change review through pull requests, issue tracking, automated workflows, and package distribution. Its repositories and automation are important security assets because they can contain proprietary code, deployment instructions, credentials, and the components used to build released software.
Material risks include accidentally committing secrets, exposing private repositories through misconfigured permissions, and allowing compromised dependencies or workflow actions to run in trusted build environments. Pull requests from untrusted contributors can also become an execution path when workflows handle them unsafely. Security practice includes least-privilege access, strong authentication, protected branches and required reviews, secret scanning and rapid credential revocation, and auditing workflow permissions. Repository history, dependency metadata, and commit provenance can support vulnerability management and incident investigation, but deleting a leaked secret from the latest file does not remove it from historical commits or existing clones.
Attackers operated an active C2 implant for up to a week and compromised AppSec vendor Xygeni's xygeni/xygeni-action in that time.
A threat actor known as UNC6426 leveraged keys stolen following the supply chain compromise of the nx npm package last year to completely breach a victim's cloud environment within a span of 72 hours