initial commit

1 files changed, 4 insertions, 0 deletions

diff --git a/punkctf/docker_02.md b/punkctf/docker_02.md
new file mode 100644
index 0000000..1314d81
--- /dev/null
+++ b/punkctf/docker_02.md
@@ -0,0 +1,4 @@
+
+If we follow the same steps as before, then we see we have the `challenge` image again, but that instead of the flag `/root/flag` just contains a hash of it.
+
+Going back to the host, we can look at the build steps for the `challenge` image with `docker image history challenge`. We see one of the build steps involves echoing the flag hash in to the file, so we can see the flag in plaintext: `punk_{V70P92VJALOS5KMM}`.