Security restrictions bypass in Mozilla Firefox - CVE-2018-12403
Published: October 24, 2018
Vulnerability identifier: #VU15503
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-12403
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to the mixed content warning is not displayed to users if a site is loaded over a HTTPS connection but loads a favicon resource over HTTP. A remote attacker can trick the victim into visiting a specially crafted website and bypass security restrictions.
The weakness exists due to the mixed content warning is not displayed to users if a site is loaded over a HTTPS connection but loads a favicon resource over HTTP. A remote attacker can trick the victim into visiting a specially crafted website and bypass security restrictions.
How to mitigate CVE-2018-12403
Update to version 63.0.