Add dockerfile for DEBUGGING purposes!

debug_docker/Dockerfile

@@ -0,0 +1,55 @@
+FROM debian:bullseye
+
+#############################################
+############ FOR DEBUGGING ONLY! ############
+#############################################
+
+
+
+RUN apt update -y && apt upgrade -y && apt install -y build-essential wget cmake tar gdb libc6-dbg python3 file
+
+
+############### INSTALL FNETD
+RUN wget https://cloud.sec.in.tum.de/index.php/s/n5cJnDqnnpSeEpd/download/fnetd.tar.xz -O /fnetd.tar.xz
+RUN tar -xf fnetd.tar.xz
+RUN mkdir /fnetd/build
+
+WORKDIR /fnetd/build
+RUN cmake .. -G "Unix Makefiles"
+RUN make
+
+WORKDIR /
+############### END INSTALL
+
+## Add your own dummy get_flag here
+COPY get_flag /bin/get_flag
+
+## Uncomment to use course libc.
+COPY libc-2.31.so /lib/x86_64-linux-gnu/libc-2.31-bx.so
+RUN ln -sf /lib/x86_64-linux-gnu/libc-2.31-bx.so /lib/x86_64-linux-gnu/libc.so.6
+
+RUN useradd -m pwn
+
+# compile vuln
+COPY parent.tar.xz /home/pwn/parent.tar.xz
+RUN mkdir /home/pwn/source
+RUN tar xvf /home/pwn/parent.tar.xz -C /home/pwn/source
+RUN mkdir /home/pwn/build
+WORKDIR /home/pwn/build
+RUN cmake /home/pwn/source -G "Unix Makefiles"
+RUN make
+WORKDIR /
+
+RUN cp /home/pwn/build/vuln /home/pwn/vuln
+
+RUN chmod 0755 /home/pwn/vuln
+
+# setup for usage of gdb inside container
+RUN echo "export LC_CTYPE=C.UTF-8" >> ~/.bashrc
+RUN bash -c "$(wget https://gef.blah.cat/sh -O -)"
+
+EXPOSE 1337
+
+# Feel free to replace password with the actual chall pw
+ENV FNETD_PASSWORD=1234
+CMD ["/fnetd/build/fnetd", "-p", "1337", "-u", "pwn", "-lt", "2", "-lm", "536870912", "./vuln"]