diff options
| -rw-r--r-- | test/test_YoutubeDL.py | 7 | ||||
| -rwxr-xr-x | youtube_dl/YoutubeDL.py | 13 |
2 files changed, 18 insertions, 2 deletions
diff --git a/test/test_YoutubeDL.py b/test/test_YoutubeDL.py index 0388c0bf3..0caa43843 100644 --- a/test/test_YoutubeDL.py +++ b/test/test_YoutubeDL.py @@ -12,7 +12,7 @@ import copy from test.helper import FakeYDL, assertRegexpMatches from youtube_dl import YoutubeDL -from youtube_dl.compat import compat_str +from youtube_dl.compat import compat_str, compat_urllib_error from youtube_dl.extractor import YoutubeIE from youtube_dl.postprocessor.common import PostProcessor from youtube_dl.utils import ExtractorError, match_filter_func @@ -631,6 +631,11 @@ class TestYoutubeDL(unittest.TestCase): result = get_ids({'playlist_items': '10'}) self.assertEqual(result, []) + def test_urlopen_no_file_protocol(self): + # see https://github.com/rg3/youtube-dl/issues/8227 + ydl = YDL() + self.assertRaises(compat_urllib_error.URLError, ydl.urlopen, 'file:///etc/passwd') + if __name__ == '__main__': unittest.main() diff --git a/youtube_dl/YoutubeDL.py b/youtube_dl/YoutubeDL.py index d50b7cfed..6b73b8e06 100755 --- a/youtube_dl/YoutubeDL.py +++ b/youtube_dl/YoutubeDL.py @@ -1986,8 +1986,19 @@ class YoutubeDL(object): https_handler = make_HTTPS_handler(self.params, debuglevel=debuglevel) ydlh = YoutubeDLHandler(self.params, debuglevel=debuglevel) data_handler = compat_urllib_request_DataHandler() + + # When passing our own FileHandler instance, build_opener won't add the + # default FileHandler and allows us to disable the file protocol, which + # can be used for malicious purposes (see + # https://github.com/rg3/youtube-dl/issues/8227) + file_handler = compat_urllib_request.FileHandler() + + def file_open(*args, **kwargs): + raise compat_urllib_error.URLError('file:// scheme is explicitly disabled in youtube-dl for security reasons') + file_handler.file_open = file_open + opener = compat_urllib_request.build_opener( - proxy_handler, https_handler, cookie_processor, ydlh, data_handler) + proxy_handler, https_handler, cookie_processor, ydlh, data_handler, file_handler) # Delete the default user-agent header, which would otherwise apply in # cases where our custom HTTP handler doesn't come into play |