PT-2015-2178 · Mozilla+5 · Firefox+6

Ehsan Akhgari

·

Published

2015-09-22

·

Updated

2024-12-12

·

CVE-2015-4520

CVSS v2.0

6.4

Medium

VectorAV:N/AC:L/Au:N/C:P/I:P/A:N
Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 41.0 Firefox ESR versions 38.x prior to 38.3
Description The issue is related to errors in security settings, allowing a remote attacker to bypass CORS protection mechanisms. This can be achieved by either duplicating cache-key sequences or retrieving values from an incorrect HTTP Access-Control-* response header.
Recommendations For Mozilla Firefox versions prior to 41.0, update to version 41.0 or later. For Firefox ESR versions 38.x prior to 38.3, update to version 38.3 or later.

Exploit

Fix

Found an issue in the description? Have something to add? Feel free to write us 👾
dbugs@ptsecurity.com

Weakness Enumeration

CWE-254

Related Identifiers

ALT-PU-2015-1816
ALT-PU-2016-1454
BDU:2015-11524
CESA-2015_1834
CESA-2015_1852
CVE-2015-4520
DSA-3365-1
MGASA-2015-0382
MGASA-2015-0387
MGASA-2015-0414
OPENSUSE-SU-2015_1658-1
OPENSUSE-SU-2015_1679-1
OPENSUSE-SU-2015_1681-1
OPENSUSE-SU-2024:10071-1
OPENSUSE-SU-2024:10230-1
OPENSUSE-SU-2024:14572-1
RHSA-2015:1834
RHSA-2015:1852
RHSA-2015_1834
RHSA-2015_1852
SUSE-SU-2015:1680-1
SUSE-SU-2015:1703-1
USN-2743-1
USN-2743-2
USN-2743-3
USN-2743-4
USN-2754-1

Affected Products

Alt Linux
Centos
Firefox Esr
Firefox
Red Hat
Suse
Ubuntu