ZDI-CAN-9559: Cisco UCS Director isEnableRestKeyAccessCheckForUser Authentication Bypass Vulnerability

This vulnerability allows remote attackers to bypass authentication on affected installations of Cisco UCS Director. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of the X-Cloupia-Request-Key field in requests. The issue results from the lack of proper validation of the user-supplied field prior to using it in authentication operations. An attacker can leverage this vulnerability to bypass authentication on the system.

Affected Software

1 affected component
Cisco UCS Director

Event History

Feb 25, 2025
Advisory Published
via ZDI·10:14 PM
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Frequently Asked Questions

1

What is the severity of ZDI-CAN-9559?

The severity of ZDI-CAN-9559 is critical due to the potential for unauthenticated remote exploitation.

2

How do I fix ZDI-CAN-9559?

To fix ZDI-CAN-9559, update your Cisco UCS Director to the latest patched version provided by Cisco.

3

What systems are affected by ZDI-CAN-9559?

ZDI-CAN-9559 affects installations of Cisco UCS Director.

4

What type of vulnerability is ZDI-CAN-9559?

ZDI-CAN-9559 is an authentication bypass vulnerability allowing remote attackers to exploit the system.

5

Can ZDI-CAN-9559 be exploited remotely?

Yes, ZDI-CAN-9559 can be exploited remotely without authentication.

Contact

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