Description
The Mozilla Windows updater modifies some files to be updated by reading the original file and applying changes to it. The location of the original file can be altered by a malicious user by passing a special path to the callback parameter through the Mozilla Maintenance Service, allowing the manipulation of files in the installation directory and privilege escalation by manipulating the Mozilla Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR < 52.2 and Firefox < 54.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/99057
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-15/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1038689
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1348645
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-16/
Scores
CVSS v3
7.8
EPSS
0.0014
EPSS Percentile
33.4%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-417
Status
published
Products (1)
mozilla/firefox
< 52.2.0
Published
Jun 11, 2018
Tracked Since
Feb 18, 2026