FROM centos:7.3.1611 RUN mkdir -m 777 /poc WORKDIR /poc/ COPY CVE-2017-1000253 . COPY CVE-2017-1000253.c . COPY rootshell . COPY rootshell.c . COPY rootshell.h . COPY ping . RUN chown root:root ping && chmod 4755 ping ENTRYPOINT ["./CVE-2017-1000253"] CMD ["ping"]