CVE-2018-12368

HIGH

Firefox < 61.0 and Firefox ESR < 52.9 - Arbitrary Code Execution via SettingContent-ms File Handling

Title source: llm
STIX 2.1

Description

Windows 10 does not warn users before opening executable files with the SettingContent-ms extension even when they have been downloaded from the internet and have the "Mark of the Web." Without the warning, unsuspecting users unfamiliar with this new file type might run an unwanted executable. This also allows a WebExtension with the limited downloads.open permission to execute arbitrary code without user interaction on Windows 10 systems. *Note: this issue only affects Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

References (10)

Core 10
Core References
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1468217
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201810-01
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-15/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-18/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-16/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/104560
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1041193
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-19/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-17/

Scores

CVSS v3 8.1
EPSS 0.0185
EPSS Percentile 83.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (3)
mozilla/firefox < 61.0
mozilla/firefox_esr < 52.9
mozilla/thunderbird < 52.9
Published Oct 18, 2018
Tracked Since Feb 18, 2026