CVE-2020-3345 : What You Need to Know

A vulnerability in certain web pages of Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to modify a web page in the context of a browser.

Understanding CVE-2020-3345

This CVE involves an HTML injection vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server.

What is CVE-2020-3345?

The vulnerability allows an attacker to manipulate web pages by passing HTML code through a crafted link, potentially leading to client-side attacks.

The Impact of CVE-2020-3345

CVSS Base Score: 4.3 (Medium Severity)
Attack Vector: Network
Attack Complexity: Low
Integrity Impact: Low
User Interaction: Required
Privileges Required: None
Scope: Unchanged
Confidentiality Impact: None
Availability Impact: None

Technical Details of CVE-2020-3345

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from improper checks on parameter values within affected pages, enabling unauthorized page modifications.

Affected Systems and Versions

Affected Product: Cisco WebEx Meetings Server
Vendor: Cisco
Affected Version: n/a

Exploitation Mechanism

Attackers can exploit the vulnerability by tricking users into clicking on malicious links that inject HTML code into parameters.

Mitigation and Prevention

Protecting systems from CVE-2020-3345 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Cisco Webex Meetings and Cisco Webex Meetings Server to the latest version.
Educate users about the risks of clicking on unknown links.

Long-Term Security Practices

Regularly monitor and audit web pages for unauthorized changes.
Implement web application firewalls to detect and block malicious activities.

Patching and Updates

Apply security patches provided by Cisco to address the HTML injection vulnerability.