#VU22254 Improper access control in FusionPBX - CVE-2019-16990
Published: October 24, 2019
Vulnerability identifier: #VU22254
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-16990
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FusionPBX
FusionPBX
Software vendor:
FusionPBX
FusionPBX
Description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in app/music_on_hold/music_on_hold.php file when processing base64-encoded file names. A remote authenticated user can pass a base64-encoded filename to the application and download any pathname on the system.
Remediation
Install updates released on 15/08/2019 on 4.4 and Master branches.