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25 lines
1 KiB
Python
25 lines
1 KiB
Python
"""Phase 20 (Track M.2) — Kafka Python vuln fixture.
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`handler` is a Kafka consumer callback (modelled after
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`KafkaConsumer('orders').poll()` dispatch) that splices the raw
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message body into a shell command via `os.system`. A malicious
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producer can inject command-separator metacharacters into the body
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and the shell will execute them — the classic message-handler cmdi
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shape.
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Adapter source-marker: `from kafka import KafkaConsumer` is kept as a
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docstring reference (not a top-level import) so the harness can run
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without the real `kafka-python` library installed on the host.
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"""
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import os
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# Phase 20 framework adapter detects this fixture via the `from kafka`
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# / `import kafka` substring scan. Keeping the marker in source lets
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# the adapter bind without forcing the host to pin the kafka-python
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# pip dep just to load the fixture module.
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_NYX_ADAPTER_MARKER = "from kafka import KafkaConsumer"
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def handler(message):
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# SINK: tainted message body concatenated into shell command
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os.system("echo " + str(message))
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