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地图 / Content length restriction bypass can lead to DOS by reading large files on gip.rocks

Content length restriction bypass can lead to DOS by reading large files on gip.rocks

拒绝服务 / 资源消耗失控 / #203388

厂商
Gratipay
严重程度
中危 · CVSS 7.5
赏金
—
弱点
资源消耗失控
研究员
@a0xnirudh
披露日期
2017-03-31
资产
—
CVE
—

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

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