Cisco Wireless LAN Controller Cross-Frame Scripting Vulnerability

A vulnerability in the web interface of the Cisco Wireless LAN Controller (WLC) could allow an unauthenticated, remote attacker to execute a cross-frame scripting (XFS) attack.

The vulnerability is due to insufficient HTML iframe protection. An attacker could exploit this vulnerability by directing a user to an attacker-controlled web page that contains a malicious HTML iframe. An exploit could allow the attacker to conduct clickjacking or other client-side browser attacks.

Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.

To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.

Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.