Spoofing attack in Mozilla Firefox - CVE-2019-11695

 

Spoofing attack in Mozilla Firefox - CVE-2019-11695

Published: May 21, 2019


Vulnerability identifier: #VU18560
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-11695
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox

Detailed vulnerability description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of custom cursor. A remote attacker can define a custom cursor by scripting on a site can position itself over the addressbar to spoof the actual cursor when it should not be allowed outside of the primary web content area. This could be used by a malicious site to trick users into clicking on permission prompts, doorhanger notifications, or other buttons inadvertently if the location is spoofed over the user interface.



How to mitigate CVE-2019-11695

Install updates from vendor's website.

Sources