Content length restriction bypass can lead to DOS by reading large files on gip.rocks
该报告还没有中文解读。
原文摘录
摘自原文(2121 字符中的一小部分)
Since you mentioned in the rules that all libraries listed on your github repositories are in scope, I decided to take a look at http://gip.rocks
原文中的代码
if int(request.headers['Content-Length']) > 256 * 1024:
raise Response(413)
image_type = request.headers['Content-Type']
if image_type not in ('image/png', 'image/jpeg'):
raise Response(415)
# Load the image.
fp = StringIO(request.raw_body)
fp.seek(0)
image = Image.open(fp)
默认不展示报告全文。以上为简短摘录,完整复现过程请阅读原文。版权归研究员与 Gratipay 所有。
时间线
- 报告提交
- 公开披露
阅读 HackerOne 原文 ↗作者 @a0xnirudh · 版权归作者与 Gratipay 所有