POJIA破甲
地图 / Crash: mrb_any_to_s can't handle NilClass, Symbol and Fixnum

Crash: mrb_any_to_s can't handle NilClass, Symbol and Fixnum

内存破坏 / 内存破坏(通用) / #185794

厂商
shopify-scripts
严重程度
中危
赏金
$8,000
弱点
内存破坏(通用)
研究员
@brakhane
披露日期
2016-12-16
资产
—
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(38824 字符中的一小部分)
When using `boxing_word.h` (haven't tested other boxing methods yet), `mrb_any_to_s` is unable to handle `NilClass`, `Symbol` and `Fixnum`. This can be achieved by just deleting `:to_s` from the class and let `mrb_any_to_s` crash.
原文中的代码
NilClass.remove_method :to_s
nil.to_s

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 shopify-scripts 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @brakhane · 版权归作者与 shopify-scripts 所有

同类报告

Race Conditions in Popular reports feature.HackerOne · 2016-08-03Malformed .MDL triggers an Access Violation on GoldSRC (hl.exe)Valve · 2019-10-09[FG-VD-19-009] Intel(R) Trace Analyzer and Collector 2019 Memory Corruption Vulnerability NotificationIntel Corporation · — · $1,500Type Confusion Vulnerability - SOAP / make_http_soap_request()Internet Bug Bounty · 2019-10-15 · $1,000Corrupted pointer in node::fs::ReadFileUtf8(const FunctionCallbackInfo<Value>& args) when args[0] is a string.Node.js · 2025-05-15Heap overflow in mysqlnd related to BIT fields (CVE-2016-7412)Internet Bug Bounty · 2019-11-12