Executive Summary

This vulnerability is an open redirect issue in the browser-based version of the Cisco Webex App. It occurs because the application does not properly validate URL parameters in HTTP requests.

An unauthenticated, remote attacker could exploit this flaw by tricking a user into clicking a specially crafted URL. When the user clicks this URL, they would be redirected to a malicious website controlled by the attacker.

Cisco has fixed this vulnerability in the cloud-based Webex App, and no customer action is needed.

Useful 0 Not Useful 0

Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

Useful 0 Not Useful 0

Impact Analysis

If exploited, this vulnerability could redirect users to malicious websites without their knowledge. This could lead to phishing attacks, malware infections, or other malicious activities initiated by the attacker.

However, the vulnerability requires the user to click a crafted URL, so social engineering is a key factor in exploitation.

Cisco has already addressed this issue, so users of the updated Webex App are protected, and no further action is required.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability involves improper input validation of URL parameters in HTTP requests that could redirect users to malicious websites. Detection would involve monitoring for suspicious or crafted URLs targeting the browser-based Cisco Webex App.

However, there are no specific detection commands or tools provided to identify exploitation attempts of this vulnerability.

Useful 0 Not Useful 0

Mitigation Strategies

Cisco has addressed this vulnerability in the cloud-based Webex App through software updates, and no customer action is needed.

There are no available workarounds for this vulnerability.

Useful 0 Not Useful 0