취약점

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Source: amazon-inspector (d9cbb2ac45124e3844e29f3efd70ca26f0089ec4eaad718bcbdaf3035ec9b34b)

The package impersonates the pino logger API (exports module.exports.pino = middleware, ships pino-style files such as lib/proto.js, lib/multistream.js, lib/transport.js, and declares logger-oriented keywords) while its actual behavior is a remote-code dropper. When a consumer imports and invokes the exported middleware, index.js spawns a detached Node child running lib/caller.js, which HTTP-GETs https://jsonkeeper.com/b/K80JD and passes the response body to new Function.constructor('require', s), then invokes it with the host process's require — granting the remote endpoint arbitrary code execution inside the installer's Node process with full module access. lib/caller.js disguises the destination by shadowing process with a local object whose env fields (API_KEY, SECRET_KEY, SECRET_VALUE) actually hold the C2 URL and header pair. lib/const.js contains a base64-encoded backup endpoint that decodes to https://jsonkeeper.com/b/ZK45J. jsonkeeper.com is an anonymous, author-mutable paste host, so the executed payload can change at any time without a package update. The pino-API impersonation on an unrelated package name (notify-theme) is a lure so that developers looking for a logger trigger the dropper.