diff --git a/flask/Lib/site-packages/webdrivermanager/base.py b/flask/Lib/site-packages/webdrivermanager/base.py index bba51f27..380aa09b 100644 --- a/flask/Lib/site-packages/webdrivermanager/base.py +++ b/flask/Lib/site-packages/webdrivermanager/base.py @@ -291,7 +291,26 @@ def download_and_install(self, version="latest", show_progress_bar=True): if archive_type == 1: with tarfile.open(dl_path / filename, mode="r:*") as tar: - tar.extractall(extract_dir) + 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(tar, extract_dir) LOGGER.debug("Extracted files: %s", ", ".join(tar.getnames())) elif archive_type == 2: with zipfile.ZipFile(dl_path / filename, mode="r") as driver_zipfile: