#VU48563 Improper access control in Cisco Expressway and Cisco TelePresence Video Communication Server - CVE-2020-3482

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Main Vulnerability Database Vulnerabilities #VU48563

#VU48563 Improper access control in Cisco Expressway and Cisco TelePresence Video Communication Server - CVE-2020-3482

Published: November 18, 2020 / Updated: November 19, 2020


Vulnerability identifier: #VU48563
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-3482
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Expressway
Cisco TelePresence Video Communication Server
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper validation of specific connection information by the Traversal Using Relays around NAT (TURN) server. A remote attacker can send traffic through the affected software to destinations beyond the application and gain unauthorized network access.


Remediation

Install updates from vendor's website.

External links