Cisco HyperFlex UI Clickjacking Vulnerability

Vulnerability

A clickjacking vulnerability exists in the web UI of Cisco HyperFlex Software [1]. The issue is due to insufficient input validation of iFrame data in HTTP requests. An unauthenticated, remote attacker can exploit this by sending crafted HTTP packets with malicious iFrame data to an affected device [1].

Exploitation

An attacker can exploit the vulnerability over the network without authentication or user interaction beyond the user visiting a malicious link [1]. The attacker sends specially crafted HTTP requests containing malicious iFrame data. The user's browser renders the iFrame, allowing the attacker to overlay transparent elements and trick the user into clicking a different link than intended [1].

Impact

Successful exploitation allows the attacker to perform a clickjacking attack, affecting the integrity of the device. The attacker can trick the user into performing actions such as changing settings or executing commands, potentially leading to further compromise [1].

Mitigation

Cisco has not provided specific fixed versions in the advisory; customers should consult the Cisco bug ID mentioned in the advisory for fixed software releases [1]. No workarounds are available. Cisco recommends using protection mechanisms to prevent this type of attack [1].