What is the severity of ZDI-20-540?

ZDI-20-540 is considered a high severity vulnerability due to the potential for unauthorized remote access.

How do I fix ZDI-20-540?

To fix ZDI-20-540, ensure that you apply the latest security patches provided by Cisco for UCS Director.

What impact does ZDI-20-540 have on systems?

ZDI-20-540 allows remote attackers to bypass authentication, potentially compromising sensitive information and system integrity.

Are there any known exploits for ZDI-20-540?

Yes, there are reports of active exploitation in the wild for ZDI-20-540, highlighting its critical nature.

What systems are affected by ZDI-20-540?

ZDI-20-540 affects installations of Cisco UCS Director that process the X-Cloupia-Request-Key without proper authentication.

Vulnerability/
ZDI-20-540

critical

9.8

4/8/2024

ZDI-20-540: 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	Affected Version	How to fix
Cisco UCS Director

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Frequently Asked Questions

What is the severity of ZDI-20-540?
ZDI-20-540 is considered a high severity vulnerability due to the potential for unauthorized remote access.
How do I fix ZDI-20-540?
To fix ZDI-20-540, ensure that you apply the latest security patches provided by Cisco for UCS Director.
What impact does ZDI-20-540 have on systems?
ZDI-20-540 allows remote attackers to bypass authentication, potentially compromising sensitive information and system integrity.
Are there any known exploits for ZDI-20-540?
Yes, there are reports of active exploitation in the wild for ZDI-20-540, highlighting its critical nature.
What systems are affected by ZDI-20-540?
ZDI-20-540 affects installations of Cisco UCS Director that process the X-Cloupia-Request-Key without proper authentication.

agent/references
agent/type
agent/softwarecombine
collector/zdi-advisory
source/ZDI
alias/ZDI-20-540
alias/ZDI-CAN-9559
alias/CVE-2020-3243
agent/software-canonical-lookup
agent/title
agent/severity
agent/tags
agent/event
agent/description
agent/source
vendor/cisco
canonical/cisco ucs director

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Frequently Asked Questions

What is the severity of ZDI-20-540?
ZDI-20-540 is considered a high severity vulnerability due to the potential for unauthorized remote access.
How do I fix ZDI-20-540?
To fix ZDI-20-540, ensure that you apply the latest security patches provided by Cisco for UCS Director.
What impact does ZDI-20-540 have on systems?
ZDI-20-540 allows remote attackers to bypass authentication, potentially compromising sensitive information and system integrity.
Are there any known exploits for ZDI-20-540?
Yes, there are reports of active exploitation in the wild for ZDI-20-540, highlighting its critical nature.
What systems are affected by ZDI-20-540?
ZDI-20-540 affects installations of Cisco UCS Director that process the X-Cloupia-Request-Key without proper authentication.