CVE-2018-5152

MEDIUM

Description

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.

References

http://www.securityfocus.com/bid/104139

http://www.securitytracker.com/id/1040896

https://bugzilla.mozilla.org/show_bug.cgi?id=1415644

https://bugzilla.mozilla.org/show_bug.cgi?id=1427289

https://usn.ubuntu.com/3645-1/

https://www.mozilla.org/security/advisories/mfsa2018-11/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2019-10-03

Type: CWE-327

Risk Information

CVSS v2.0

Base Score: 4.3

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

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

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

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM