Insecure DLL library loading in Firefox ESR - CVE-2017-7755
Published: June 14, 2017 / Updated: May 26, 2020
Vulnerability identifier: #VU7069
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-7755
CWE-ID: CWE-426
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Firefox ESR
Firefox ESR
Detailed vulnerability description
The vulnerability allows a remote attacker to gain elevated privileges on the target system.
The vulnerability exists due to insecure .dll loading mechanism when opening files. A remote attacker can place a specially crafted .dll file along with installer on a remote SBM or WebDAV share, trick the victim into running the installer file from this directory and execute arbitrary code on the target system with privileges of the current victim.
Successful exploitation of the vulnerability may result in system compromise.
The vulnerability exists due to insecure .dll loading mechanism when opening files. A remote attacker can place a specially crafted .dll file along with installer on a remote SBM or WebDAV share, trick the victim into running the installer file from this directory and execute arbitrary code on the target system with privileges of the current victim.
Successful exploitation of the vulnerability may result in system compromise.
How to mitigate CVE-2017-7755
Update to version 52.2.