From 0cf3f0ece31cc0f3d0de19e6a9cd2806f4dd379f Mon Sep 17 00:00:00 2001
From: Yan <yans@yancomm.net>
Date: Tue, 3 Sep 2024 13:55:41 -0700
Subject: [PATCH] another unintended one!

---
 input-restrictions/19-next-2/run | 16 ++++++++++++++++
 input-restrictions/module.yml    |  4 ++++
 2 files changed, 20 insertions(+)
 create mode 100755 input-restrictions/19-next-2/run

diff --git a/input-restrictions/19-next-2/run b/input-restrictions/19-next-2/run
new file mode 100755
index 0000000..cfc3074
--- /dev/null
+++ b/input-restrictions/19-next-2/run
@@ -0,0 +1,16 @@
+#!/usr/bin/env -iS /opt/pwn.college/bash
+
+PATH=/usr/bin
+
+WORKDIR=$(mktemp -d)
+[ -n "$WORKDIR" ] || exit 1
+cp "$1" "$WORKDIR/dangerous-script.sh"
+cd $WORKDIR
+
+doit() {
+	echo -n ""
+	cat dangerous-script.sh | tr -cd "[\n $\-/0-9a-z]" | grep -E "^(echo|read) " > safe-script.sh
+	bash safe-script.sh
+}
+
+doit
diff --git a/input-restrictions/module.yml b/input-restrictions/module.yml
index 4ec068a..4648482 100644
--- a/input-restrictions/module.yml
+++ b/input-restrictions/module.yml
@@ -47,6 +47,10 @@ challenges:
   description: In the depth of confusion, seek your true name and find yourself anew.
 
 - id: "19-next"
+  name: Sensing of Secrets
+  description: In speaking truth, one can reveal mysteries.
+
+- id: "19-next-2"
   name: The Stumble From Safety
   description: A perfect stumble can reveal the path of infinite potential. Is safety binding, or just an illusion?