What is CVE-2020-3356?

CVE-2020-3356 is a vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) that could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack.

How does CVE-2020-3356 affect Cisco Data Center Network Manager?

CVE-2020-3356 affects Cisco Data Center Network Manager versions up to and including 11.3(1).

What is the severity of CVE-2020-3356?

The severity of CVE-2020-3356 is medium, with a CVSS score of 6.1.

What is cross-site scripting (XSS) attack?

Cross-site scripting (XSS) is a type of security vulnerability where an attacker injects malicious scripts into trusted websites viewed by other users.

How can I fix CVE-2020-3356 in Cisco Data Center Network Manager?

To fix CVE-2020-3356 in Cisco Data Center Network Manager, apply the necessary security patches or updates provided by Cisco.

Vulnerability/
CVE-2020-3356

medium

6.1

CWE

79 20

18/6/2020

15/11/2024

CVE-2020-3356: Cisco Data Center Network Manager Stored Cross-Site Scripting Vulnerability

First published: Thu Jun 18 2020(Updated: )

A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by interacting with the interface in a way that injects malicious content in a log file. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Data Center Network Manager	<=11.3\(1\)

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-stored-xss-eUyGPqxm

Frequently Asked Questions

What is CVE-2020-3356?
CVE-2020-3356 is a vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) that could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack.
How does CVE-2020-3356 affect Cisco Data Center Network Manager?
CVE-2020-3356 affects Cisco Data Center Network Manager versions up to and including 11.3(1).
What is the severity of CVE-2020-3356?
The severity of CVE-2020-3356 is medium, with a CVSS score of 6.1.
What is cross-site scripting (XSS) attack?
Cross-site scripting (XSS) is a type of security vulnerability where an attacker injects malicious scripts into trusted websites viewed by other users.
How can I fix CVE-2020-3356 in Cisco Data Center Network Manager?
To fix CVE-2020-3356 in Cisco Data Center Network Manager, apply the necessary security patches or updates provided by Cisco.

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version/cisco data center network manager/11.3\(1\)

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