Vulnerability in Microsoft Windows 10
CVE-2018-12368
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.048 (91.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.048 · newest: 0.048 · change: 0.000
Affected products
- Microsoft Windows 10
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox Esr
- Mozilla Thunderbird — versions unspecified
References
- bugzilla.mozilla.org/show_bug.cgi (Vendor Advisory, Permissions Required, Issue Tracking)
- security.gentoo.org/glsa/201810-01 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-15/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2018-18/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2018-16/ (Vendor Advisory)
- posts.specterops.io/the-tale-of-settingcontent-ms-files-f1ea253e4d39 (Exploit, Third Party Advisory)
- www.securityfocus.com/bid/104560 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1041193 (VDB Entry, Third Party Advisory, vdb-entry)
- www.mozilla.org/security/advisories/mfsa2018-19/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2018-17/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-12368?
- CVE-2018-12368 is a high-severity vulnerability in Microsoft Windows 10. CVSS score: 8.1/10. Published 2018-10-18.
- How severe is CVE-2018-12368?
- High severity. CVSS v3 base score is 8.1 out of 10.