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PoC: HDF5 intermediate ExternalLink bypass
Files
- evil.weights.h5: malicious Keras weights file
- secret_weights.h5: external HDF5 file referenced through an intermediate ExternalLink
- poc.py: reproduction script
- uild_poc_weights.py: rebuilds the HDF5 artifacts
- SUBMISSION_TITLE.txt: title to paste into Huntr
- SUBMISSION_DESCRIPTION.md: description to paste into Huntr
Reproduction
ash pip install keras tensorflow-cpu h5py python poc.py
Expected output includes:
ext BASE_BEFORE [0.0] PRED_AFTER [424242.0]
The PoC is self-contained. It ships the malicious evil.weights.h5 and the linked external HDF5 file secret_weights.h5 in the same repository. No additional attachments are required.
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