anti
6905c88083
Replace impacket's SimpleSMBServer with a hand-rolled asyncio SMB2 framer that walks Negotiate -> SessionSetup(Type1) -> SessionSetup(Type3) just deep enough to extract the inner NTLMSSP Type 3 via the shared parse_type3() parser. Always returns STATUS_LOGON_FAILURE; the attacker's hash lands in the Credential table, the attacker doesn't land on the host. - decnet/engine/deployer.py: _sync_ntlmssp_sources() mirrors the auth-helper / sessrec sync pattern, copies _shared/ntlmssp.py into smb/ and rdp/ build contexts before docker compose up. - Dockerfile: drop impacket dep, copy ntlmssp.py. - 7 unit tests drive the asyncio handler in-process via StreamReader.feed_data; assert dialect, MORE_PROCESSING_REQUIRED on first SessionSetup, NTLMSSP Type 2 carriage in SPNEGO, credential capture with universal SD shape, STATUS_LOGON_FAILURE on Type 3, oversized-NBSS / SMB1 / short-PDU drops.
25 lines
787 B
Docker
25 lines
787 B
Docker
ARG BASE_IMAGE=debian:bookworm-slim
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FROM ${BASE_IMAGE}
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RUN apt-get update && apt-get install -y --no-install-recommends \
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python3 \
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&& rm -rf /var/lib/apt/lists/*
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COPY syslog_bridge.py /opt/syslog_bridge.py
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COPY ntlmssp.py /opt/ntlmssp.py
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COPY server.py /opt/server.py
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COPY entrypoint.sh /entrypoint.sh
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RUN chmod +x /entrypoint.sh
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EXPOSE 445 139
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RUN useradd -r -s /bin/false -d /opt logrelay \
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&& apt-get update && apt-get install -y --no-install-recommends libcap2-bin \
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&& rm -rf /var/lib/apt/lists/* \
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&& (find /usr/bin/ -maxdepth 1 -name 'python3*' -type f -exec setcap 'cap_net_bind_service+eip' {} \; 2>/dev/null || true)
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HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
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CMD kill -0 1 || exit 1
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USER logrelay
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ENTRYPOINT ["/entrypoint.sh"]
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