CVE-2017-5419

HIGH

Description

If a malicious site repeatedly triggers a modal authentication prompt, eventually the browser UI will become non-responsive, requiring shutdown through the operating system. This is a denial of service (DOS) attack. This vulnerability affects Firefox < 52 and Thunderbird < 52.

References

http://www.securityfocus.com/bid/96692

http://www.securitytracker.com/id/1037966

https://bugzilla.mozilla.org/show_bug.cgi?id=1312243

https://www.mozilla.org/security/advisories/mfsa2017-05/

https://www.mozilla.org/security/advisories/mfsa2017-09/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2018-08-07

Type: CWE-254

Risk Information

CVSS v2.0

Base Score: 7.8

Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C)

Impact Score: 6.9

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH