From b56a224044b7cde93cb446f14f0fa9ff30d28b65 Mon Sep 17 00:00:00 2001
From: Johannes Maier <johannes2.maier@tum.de>
Date: Fri, 12 Jan 2024 01:36:52 +0100
Subject: [PATCH] Add dockerfile for DEBUGGING purposes!

---
 .gitignore              |  5 ++++
 debug_docker/Dockerfile | 55 +++++++++++++++++++++++++++++++++++++++++
 debug_docker/launch.sh  |  6 +++++
 3 files changed, 66 insertions(+)
 create mode 100644 debug_docker/Dockerfile
 create mode 100755 debug_docker/launch.sh

diff --git a/.gitignore b/.gitignore
index 2f58603..0daf164 100644
--- a/.gitignore
+++ b/.gitignore
@@ -58,3 +58,8 @@ build
 
 /.idea
 /.vscode
+
+debug_docker/**/*
+!/debug_docker/Dockerfile
+!/debug_docker/launch.sh
+
diff --git a/debug_docker/Dockerfile b/debug_docker/Dockerfile
new file mode 100644
index 0000000..3d3bbc2
--- /dev/null
+++ b/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"]
diff --git a/debug_docker/launch.sh b/debug_docker/launch.sh
new file mode 100755
index 0000000..63beaf3
--- /dev/null
+++ b/debug_docker/launch.sh
@@ -0,0 +1,6 @@
+rm -f parent
+find ..  -maxdepth 1 -type f | xargs tar cvf parent.tar.xz
+docker container rm binex_project
+docker image rm binex_project
+docker build -t binex_project .
+docker run -it -p 1337:1337 --cap-add=SYS_PTRACE --name binex_project binex_project