Rapid7 Vulnerability & Exploit Database

MFSA2015-140 Firefox: Cross-origin information leak through web workers error events (CVE-2015-7215)

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MFSA2015-140 Firefox: Cross-origin information leak through web workers error events (CVE-2015-7215)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
12/16/2015
Created
07/25/2018
Added
12/18/2015
Modified
04/05/2017

Description

The importScripts function in the Web Workers API implementation in Mozilla Firefox before 43.0 allows remote attackers to bypass the Same Origin Policy by triggering use of the no-cors mode in the fetch API to attempt resource access that throws an exception, leading to information disclosure after a rethrow.

Solution(s)

  • mozilla-firefox-upgrade-43_0

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