From 6075a029dba70a89675ae1250e7cdfd91f0eba41 Mon Sep 17 00:00:00 2001 From: Thomas Gerbet Date: Thu, 4 Jul 2024 00:35:24 +0200 Subject: [PATCH] [ie/douyutv] Do not use dangerous javascript source/URL (#10347) Ref: https://sansec.io/research/polyfill-supply-chain-attack Authored by: LeSuisse --- yt_dlp/extractor/douyutv.py | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/yt_dlp/extractor/douyutv.py b/yt_dlp/extractor/douyutv.py index fdf19c252..e36eac919 100644 --- a/yt_dlp/extractor/douyutv.py +++ b/yt_dlp/extractor/douyutv.py @@ -24,8 +24,9 @@ from ..utils import ( class DouyuBaseIE(InfoExtractor): def _download_cryptojs_md5(self, video_id): for url in [ + # XXX: Do NOT use cdn.bootcdn.net; ref: https://sansec.io/research/polyfill-supply-chain-attack 'https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/md5.js', - 'https://cdn.bootcdn.net/ajax/libs/crypto-js/3.1.2/rollups/md5.js', + 'https://unpkg.com/cryptojslib@3.1.2/rollups/md5.js', ]: js_code = self._download_webpage( url, video_id, note='Downloading signing dependency', fatal=False) @@ -35,7 +36,8 @@ class DouyuBaseIE(InfoExtractor): raise ExtractorError('Unable to download JS dependency (crypto-js/md5)') def _get_cryptojs_md5(self, video_id): - return self.cache.load('douyu', 'crypto-js-md5') or self._download_cryptojs_md5(video_id) + return self.cache.load( + 'douyu', 'crypto-js-md5', min_ver='2024.07.04') or self._download_cryptojs_md5(video_id) def _calc_sign(self, sign_func, video_id, a): b = uuid.uuid4().hex