CVE-2022-28169 - Brocade Fabric OS Privilege Escalation Vulnerability (BSA-2022-2075)

Security Advisory ID : BSA-2022-2075

Component : Webtools

Revision : 3.1

Brocade Webtools in Brocade Fabric OS versions before Brocade Fabric OS versions v9.1.1, v9.0.1e, and v8.2.3c could allow a low privilege webtools user to gain elevated admin rights, or privileges, beyond what is intended or entitled for that user. By exploiting this vulnerability, a user whose role is not an admin, can create a new user with an admin role using the operator session id. The issue was replicated after intercepting the admin, and operator authorization headers sent unencrypted and editing a user addition request to use the operator’s authorization header.

A solution provided in Brocade Fabric OS versions v9.1.1, v9.0.1e, and v8.2.3c provides a configurable option to “disable” access for all non-admin users.

This configuration option does not impact REST and CLI interfaces, and non-Admin users may continue to use CLI or REST to access the switch.

In Brocade Fabric OS version v9.2.0, architectural changes allows non-admin users access through Webtools and HTML interfaces without exposure to this vulnerability.

Affected Product

All versions of Brocade Fabric OS before Brocade Fabric OS v9.2.0

A configuration option has been introduced in Brocade Fabric OS versions v9.1.1, v9.0.1e, and v8.2.3c to prevent exposure to this vulnerability