What is CVE-2021-1127?

CVE-2021-1127 is a vulnerability in the web-based management interface of Cisco Enterprise NFV Infrastructure Software (NFVIS) that allows an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack.

How severe is CVE-2021-1127?

CVE-2021-1127 has a severity rating of 5.4, which is considered medium.

Which version of Cisco Enterprise NFV Infrastructure Software is affected by CVE-2021-1127?

Cisco Enterprise NFV Infrastructure Software version 4.4.1 and prior are affected by CVE-2021-1127.

How can an attacker exploit CVE-2021-1127?

An authenticated, remote attacker can exploit CVE-2021-1127 by conducting a cross-site scripting (XSS) attack against a user of the web-based management interface.

Is there a fix available for CVE-2021-1127?

Yes, Cisco has provided a fix for CVE-2021-1127. Please refer to the official Cisco Security Advisory for more information.

Vulnerability/
CVE-2021-1127

medium

5.4

CWE

79 20

13/1/2021

16/9/2024

CVE-2021-1127: Cisco Enterprise NFV Infrastructure Software Cross-Site Scripting Vulnerability

First published: Wed Jan 13 2021(Updated: )

A vulnerability in the web-based management interface of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface. The vulnerability is due to improper input validation of log file content stored on the affected device. An attacker could exploit this vulnerability by modifying a log file with malicious code and getting a user to view the modified log file. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or to access sensitive, browser-based information.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Enterprise NFV Infrastructure Software	<4.4.1

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-xss-smsz5Vhb

Frequently Asked Questions

What is CVE-2021-1127?
CVE-2021-1127 is a vulnerability in the web-based management interface of Cisco Enterprise NFV Infrastructure Software (NFVIS) that allows an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack.
How severe is CVE-2021-1127?
CVE-2021-1127 has a severity rating of 5.4, which is considered medium.
Which version of Cisco Enterprise NFV Infrastructure Software is affected by CVE-2021-1127?
Cisco Enterprise NFV Infrastructure Software version 4.4.1 and prior are affected by CVE-2021-1127.
How can an attacker exploit CVE-2021-1127?
An authenticated, remote attacker can exploit CVE-2021-1127 by conducting a cross-site scripting (XSS) attack against a user of the web-based management interface.
Is there a fix available for CVE-2021-1127?
Yes, Cisco has provided a fix for CVE-2021-1127. Please refer to the official Cisco Security Advisory for more information.

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