Security restrictions bypass in Mozilla Firefox - CVE-2017-7789
Published: August 14, 2017
Vulnerability identifier: #VU7850
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-7789
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 insufficient same-origin policies. A remote attacker can trick the victim into visiting a specially crafted website, trigger the server to send two Strict-Transport-Security (STS) headers for a single connection and cause HTTP Strict Transport Security (HSTS) to fail to be enabled for the connection.
The weakness exists due to insufficient same-origin policies. A remote attacker can trick the victim into visiting a specially crafted website, trigger the server to send two Strict-Transport-Security (STS) headers for a single connection and cause HTTP Strict Transport Security (HSTS) to fail to be enabled for the connection.
How to mitigate CVE-2017-7789
Update to version 55.0.