diff --git a/Chapter06/extract_contents.py b/Chapter06/extract_contents.py
index 3e1b060..ce6ef1b 100644
--- a/Chapter06/extract_contents.py
+++ b/Chapter06/extract_contents.py
@@ -2,5 +2,27 @@
 
 os.mkdir('work')
 with tarfile.open('work.tar', 'r') as t:
-	t.extractall('work')
+
+import os
+
+def is_within_directory(directory, target):
+	
+	abs_directory = os.path.abspath(directory)
+	abs_target = os.path.abspath(target)
+
+	prefix = os.path.commonprefix([abs_directory, abs_target])
+	
+	return prefix == abs_directory
+
+def safe_extract(tar, path=".", members=None, *, numeric_owner=False):
+
+	for member in tar.getmembers():
+		member_path = os.path.join(path, member.name)
+		if not is_within_directory(path, member_path):
+			raise Exception("Attempted Path Traversal in Tar File")
+
+	tar.extractall(path, members, numeric_owner=numeric_owner) 
+	
+
+safe_extract(t, "work")
 print(os.listdir('work'))