#VU7076 Security bypass in Firefox ESR - CVE-2017-7765
Published: June 14, 2017 / Updated: May 26, 2020
Vulnerability identifier: #VU7076
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-2017-7765
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Firefox ESR
Firefox ESR
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to incorrect saving of the "Mark of the Web" on Windows when files with very long names were downloaded from the Internet. A remote attacker can trick the victim into downloading a specially crafted file, execute it and bypass "Mark of the Web".
Successful exploitation of the vulnerability may result in further attacks.
The weakness exists due to incorrect saving of the "Mark of the Web" on Windows when files with very long names were downloaded from the Internet. A remote attacker can trick the victim into downloading a specially crafted file, execute it and bypass "Mark of the Web".
Successful exploitation of the vulnerability may result in further attacks.
Remediation
Update to version 52.2.