CVE-2018-5152

Published: 11 May 2018

WebExtensions with the appropriate permissions can attach content scripts to Mozilla sites such as accounts.firefox.com and listen to network traffic to the site through the "webRequest" API. For example, this allows for the interception of username and an encrypted password during login to Firefox Accounts. This issue does not expose synchronization traffic directly and is limited to the process of user login to the website and the data displayed to the user once logged in. This vulnerability affects Firefox < 60.

Priority

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package	Release	Status
firefox Launchpad, Ubuntu, Debian	artful	Released (60.0+build2-0ubuntu0.17.10.1)
	bionic	Released (60.0+build2-0ubuntu1)
	trusty	Released (60.0+build2-0ubuntu0.14.04.1)
	upstream	Released (60.0)
	xenial	Released (60.0+build2-0ubuntu0.16.04.1)

Severity score breakdown

Parameter	Value
Base score	6.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

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