#VU10982 Spoofing attack in Mozilla Firefox - CVE-2018-5138
Published: March 13, 2018
Vulnerability identifier: #VU10982
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-5138
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Mozilla Firefox
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to conduct spoofing attack.
The vulnerability exists due to an error when a malicious site with an extremely long domain name is opened in an Android Custom Tab (a browser panel inside another app) and the default browser is Firefox for Android. A remote attacker can spoof which page is actually loaded and in use.
Note: this issue only affects Firefox for Android.
Remediation
Update to version 59.0.