Loopback Attack

Noun · Security & Infosec

Definitions

  1. An attack that abuses access to the local loopback interface, such as `127.0.0.1`, to reach services that were assumed to be accessible only from the same host. Loopback attacks commonly appear in SSRF, browser abuse, and sandbox escape scenarios where 'local-only' assumptions break down.

    In plain English: An attack that tricks a system into reaching services available only on its own local interface.

    Example: "The browser plugin enabled a loopback attack against a local admin service that was never meant to face untrusted content."

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