cve-2016-7190

概要 CVE-2016-7190 0 は、ChakraCore の Array.map 関数におけるヒープオーバーフローであり、隣接するメモリを上書きすることができます。任意読み取り/書き込みアクセスを得るための主なアイデアは、まず連続する複数の JavaScript 整数配列を割り当て、オーバーフローを利用して1つの配列のサイズを操作することです。次に、この配列を利用して Uint8Array のベースアドレスを読み書きしたい任意のアドレスに変更します。この追加のステップが必要な理由は、オーバーフローがオーバーフローした整数配列のサイズの最大2倍に制限されているためです。...

Don't use functions as callbacks unless they're designed for it

Here's an old pattern that seems to be making a comeback: // Convert some numbers into human-readable strings: import toReadableNumber from 'some-library'; const readableNumbers = someNumbers.maptoReadableNumber; Where the implementation of toReadableNumber is like this: export function...

Google Chrome 72 and 73 - Array.map Out-of-Bounds Write (Metasploit)

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Google Chrome 72 and 73 Array.map exploit', 'Description' = %q This module exploits an issue in Chrome 73.0.3683.86 64 bit. The exploit corrupts...

Google Chrome 72 / 73 Array.map Corruption Exploit

This Metasploit module exploits an issue in Chrome version 73.0.3683.86 64 bit. The exploit corrupts the length of a float in order to modify the backing store of a typed array. The typed array can then be used to read and write arbitrary memory. The exploit then uses WebAssembly in order to...

Google Chrome 72 and 73 Array.map exploit

This module exploits an issue in Chrome 73.0.3683.86 64 bit. The exploit corrupts the length of a float in order to modify the backing store of a typed array. The typed array can then be used to read and write arbitrary memory. The exploit then uses WebAssembly in order to allocate a region of RW...

Microsoft Edge - Array.map Heap Overflow (MS16-119)

Microsoft Edge - Array.map Heap Overflow MS16-119 var b = new Array1,2,3; var d = new Array1,2,3; class dummy constructor alert"in constructor"; return d; var handler = get: functiontarget, name ifname == "length" return 0x100; return Symbol.species : dummy; , has: functiontarget, name alert"has ...

Microsoft Edge - 'Array.map' Heap Overflow (MS16-119)

var b = new Array1,2,3; var d = new Array1,2,3; class dummy constructor alert"in constructor"; return d; var handler = get: functiontarget, name ifname == "length" return 0x100; return Symbol.species : dummy; , has: functiontarget, name alert"has " + name; return true; ; var p = new Proxy, handle...