CVE-2017-7783 Information

Description

If a long user name is used in a username/password combination in a site URL (such as \ http://UserName:Password@example.com) the resulting modal prompt will hang in a non-responsive state or crash causing a denial of service. This vulnerability affects Firefox 55.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/100401 http://www.securitytracker.com/id/1039124 https://bugzilla.mozilla.org/show_bug.cgi?id=1360842 https://www.exploit-db.com/exploits/43020/ https://www.mozilla.org/security/advisories/mfsa2017-18/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5