CVE-2017-7766 : An attack using manipulation of "updater.ini" contents, used by the Mozilla Wind

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.

Published 2018-06-11 21:29:09

Updated 2019-10-03 00:03:26

Source Mozilla Corporation

View at NVD, CVE.org

Vulnerability category: Gain privilege

Products affected by CVE-2017-7766

Mozilla » Firefox
Versions before (<) 54.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows » Version: N/A
Mozilla » Firefox Esr
Versions before (<) 52.2.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2017-7766

EPSS FAQ

0.20%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 43 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-7766

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.6	MEDIUM	AV:L/AC:L/Au:N/C:P/I:P/A:P	3.9	6.4	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.8	HIGH	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

References for CVE-2017-7766

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

1342742 - (CVE-2017-7766) Arbitrary code execution as SYSTEM using Updater to overwrite updater.ini
Issue Tracking;Vendor Advisory
http://www.securityfocus.com/bid/99057

Mozilla Firefox Multiple Security Vulnerabilities
Third Party Advisory;VDB Entry

CVEs referencing this url
http://www.securitytracker.com/id/1038689

Mozilla Firefox Multiple Bugs Let Remote Users Spoof URLs, Obtain Potentially Sensitive Information, and Execute Arbitrary Code and Let Local Users Gain Elevated Privileges - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url
https://www.mozilla.org/security/advisories/mfsa2017-15/

Security vulnerabilities fixed in Firefox 54 — Mozilla
Vendor Advisory

CVEs referencing this url
https://www.mozilla.org/security/advisories/mfsa2017-16/

Security vulnerabilities fixed in Firefox ESR 52.2 — Mozilla
Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2017-7766

Products affected by CVE-2017-7766

Exploit prediction scoring system (EPSS) score for CVE-2017-7766

CVSS scores for CVE-2017-7766

References for CVE-2017-7766