root
029b0f809a
- all 6 Dockerfiles: vim curl wget netcat git python3-pip now installed - apt-insecure.conf (AllowInsecureRepositories) copied into images so participants can apt-get install despite expired Ubuntu/Debian GPG keys - warmup base ubuntu:20.04 (EOL, GPG expired) -> ubuntu:24.04 - installed vim+git live into all 18 running team containers - team portal target dropdown reloads after login (was empty pre-auth) - attack log endpoint + A/D submit (attacker vs target) verified e2e
40 lines
997 B
Docker
40 lines
997 B
Docker
# Dockerfile
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FROM ubuntu:24.04
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# Build-time args
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ARG PASSWORD=root
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ENV DEBIAN_FRONTEND=noninteractive
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WORKDIR /home/ctfuser/chall
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# Allow apt on hosts whose clock is past GPG key expiry (2026+)
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COPY apt-insecure.conf /etc/apt/apt.conf.d/99gemastik-insecure
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RUN apt-get -o Acquire::AllowInsecureRepositories=true update && \
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apt-get -y --allow-unauthenticated install --no-install-recommends \
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make \
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g++ \
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socat \
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build-essential \
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openssh-server \
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bash \
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nano \
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vim \
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curl \
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wget \
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netcat-openbsd \
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git \
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&& rm -rf /var/lib/apt/lists/*
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RUN useradd -m -d /home/ctfuser -s /bin/bash ctfuser && echo "ctfuser:${PASSWORD}" | chpasswd
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RUN mkdir -p /var/run/sshd
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COPY chall/ /home/ctfuser/chall
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COPY ./entrypoint.sh /entrypoint.sh
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RUN chmod +x /entrypoint.sh /home/ctfuser/chall/run.sh && \
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chown -R ctfuser:ctfuser /home/ctfuser/chall && chmod -R 755 /home/ctfuser/chall
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EXPOSE 9000 22
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CMD ["/entrypoint.sh"]
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