#VU10976 Information disclosure in Mozilla Firefox - CVE-2018-5133
Published: March 13, 2018
Vulnerability identifier: #VU10976
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-5133
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Mozilla Firefox
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists due to improper sanitization of HTML and script content. A local attacker can use a specially crafted program to change the app.support.baseURL preference, load chrome://browser/content/preferences/in-content/preferences.xul directly in a tab, bypass security restrictions and execute a search whenever an EME video player plugin displays a CDM-disabled message as a notification message.
The weakness exists due to improper sanitization of HTML and script content. A local attacker can use a specially crafted program to change the app.support.baseURL preference, load chrome://browser/content/preferences/in-content/preferences.xul directly in a tab, bypass security restrictions and execute a search whenever an EME video player plugin displays a CDM-disabled message as a notification message.
Remediation
Update to version 59.0.