Cisco Security Advisory - Cisco Expressway Software Unauthorized Access Information Disclosure Vulnerability

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Cisco Expressway Software Unauthorized Access Information Disclosure Vulnerability

A vulnerability in the Traversal Using Relays around NAT (TURN) server component of Cisco Expressway software could allow an unauthenticated, remote attacker to bypass security controls and send network traffic to restricted destinations.

The vulnerability is due to improper validation of specific connection information by the TURN server within the affected software. An attacker could exploit this issue by sending specially crafted network traffic to the affected software. A successful exploit could allow the attacker to send traffic through the affected software to destinations beyond the application, possibly allowing the attacker to gain unauthorized network access.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-Expressway-8J3yZ7hV

     
         
Security Impact Rating:  Medium
   
   
       
CVE: CVE-2020-3482
Source: Cisco Expressway Software Unauthorized Access Information Disclosure Vulnerability