What is CVE-2021-1277?

CVE-2021-1277 is a vulnerability in Cisco Data Center Network Manager (DCNM) that could allow an attacker to spoof a trusted host or perform a man-in-the-middle attack.

What is the severity of CVE-2021-1277?

The severity of CVE-2021-1277 is high with a severity value of 6.5.

How can an attacker exploit CVE-2021-1277?

An attacker can exploit CVE-2021-1277 by performing spoofing or man-in-the-middle attacks to gain unauthorized access or manipulate data.

Is there a fix available for CVE-2021-1277?

Yes, Cisco has provided a fix for CVE-2021-1277. It is recommended to update to the latest version of Cisco Data Center Network Manager.

Vulnerability/
CVE-2021-1277

high

7.5

CWE

295

20/1/2021

12/11/2024

CVE-2021-1277: Cisco Data Center Network Manager Certificate Validation Vulnerabilities

Q: How does CVE-2021-1277 impact Cisco Data Center Network Manager?

CVE-2021-1277 could allow an attacker to extract sensitive information or alter certain API requests in Cisco Data Center Network Manager.

First published: Wed Jan 20 2021(Updated: )

Multiple vulnerabilities in Cisco Data Center Network Manager (DCNM) could allow an attacker to spoof a trusted host or construct a man-in-the-middle attack to extract sensitive information or alter certain API requests. These vulnerabilities are due to insufficient certificate validation when establishing HTTPS requests with the affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Data Center Network Manager	<11.5\(1\)

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-cert-check-BdZZV9T3

Frequently Asked Questions

What is CVE-2021-1277?
CVE-2021-1277 is a vulnerability in Cisco Data Center Network Manager (DCNM) that could allow an attacker to spoof a trusted host or perform a man-in-the-middle attack.
What is the severity of CVE-2021-1277?
The severity of CVE-2021-1277 is high with a severity value of 6.5.
How does CVE-2021-1277 impact Cisco Data Center Network Manager?
CVE-2021-1277 could allow an attacker to extract sensitive information or alter certain API requests in Cisco Data Center Network Manager.
How can an attacker exploit CVE-2021-1277?
An attacker can exploit CVE-2021-1277 by performing spoofing or man-in-the-middle attacks to gain unauthorized access or manipulate data.
Is there a fix available for CVE-2021-1277?
Yes, Cisco has provided a fix for CVE-2021-1277. It is recommended to update to the latest version of Cisco Data Center Network Manager.

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