CVE-2020-3346 Explained : Impact and Mitigation

A vulnerability in the web UI of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface.

Understanding CVE-2020-3346

This CVE involves a cross-site scripting vulnerability in Cisco Unified Communications Manager.

What is CVE-2020-3346?

The vulnerability in the web UI of Cisco Unified Communications Manager and Session Management Edition could enable an attacker to execute arbitrary script code through a crafted link.

The Impact of CVE-2020-3346

The vulnerability could lead to the execution of arbitrary script code in the context of the affected interface or access sensitive browser-based information.

Technical Details of CVE-2020-3346

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability allows an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack by exploiting the lack of proper validation of user-supplied input in the web UI.

Affected Systems and Versions

Product: Cisco Unified Communications Manager
Vendor: Cisco
Affected Version: n/a

Exploitation Mechanism

Attacker persuades a user to click a crafted link
Successful exploit allows execution of arbitrary script code or access to sensitive information

Mitigation and Prevention

Steps to address and prevent the vulnerability.

Immediate Steps to Take

Apply vendor patches or updates promptly
Educate users on safe browsing practices
Monitor network traffic for signs of exploitation

Long-Term Security Practices

Regular security training for employees
Implement web application firewalls
Conduct regular security audits

Patching and Updates

Check for and apply security patches from Cisco
Keep systems up to date with the latest software releases