CVE-2017-7766

HIGH
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

An attack using manipulation of "updater.ini" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the 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

http://www.securityfocus.com/bid/99057

http://www.securitytracker.com/id/1038689

https://bugzilla.mozilla.org/show_bug.cgi?id=1342742

https://www.mozilla.org/security/advisories/mfsa2017-15/

https://www.mozilla.org/security/advisories/mfsa2017-16/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2019-10-03

Risk Information

CVSS v2

Base Score: 4.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (4 total)

IDNameProductFamilySeverity
100885openSUSE Security Update : Mozilla based packages (openSUSE-2017-712)NessusSuSE Local Security Checks
critical
100810Mozilla Firefox < 54 Multiple VulnerabilitiesNessusWindows
critical
100809Mozilla Firefox ESR < 52.2 Multiple VulnerabilitiesNessusWindows
critical
100775FreeBSD : mozilla -- multiple vulnerabilities (6cec1b0a-da15-467d-8691-1dea392d4c8d)NessusFreeBSD Local Security Checks
critical