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地图 / 'net/ftp': Uncontrolled Resource Consumption (Memory/CPU)

'net/ftp': Uncontrolled Resource Consumption (Memory/CPU)

拒绝服务 / 资源消耗失控 / #1165748

厂商
Ruby
严重程度
低危 · CVSS 5.9
赏金
—
弱点
资源消耗失控
研究员
@sighook
披露日期
2021-04-21
资产
https://github.com/ruby/ruby
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(1262 字符中的一小部分)
Current `TIME_PARSER` implementation allows attackers to cause a denial of service (memory consumption) via a large integer value for the `fractions` property.
原文中的代码
    TIME_PARSER = ->(value, local = false) {
      unless /\A(?<year>\d{4})(?<month>\d{2})(?<day>\d{2})
            (?<hour>\d{2})(?<min>\d{2})(?<sec>\d{2})
            (?:\.(?<fractions>\d+))?/x =~ value
        raise FTPProtoError, "invalid time-val: #{value}"
      end
      usec = …

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 Ruby 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @sighook · 版权归作者与 Ruby 所有

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