What is the vulnerability ID for the Cisco Firepower Management Center web-based management interface vulnerabilities?

The vulnerability ID is CVE-2021-1239.

What is the severity rating of CVE-2021-1239?

The severity rating of CVE-2021-1239 is medium with a CVSS v3 base score of 4.8.

How can an attacker exploit CVE-2021-1239?

An authenticated, remote attacker can exploit CVE-2021-1239 by conducting a stored cross-site scripting (XSS) attack against a user of the interface of an affected system.

Is there a fix available for CVE-2021-1239?

Yes, Cisco has released a security advisory with remediation steps for CVE-2021-1239. Please refer to the Cisco Security Advisory for more information.

Vulnerability/
CVE-2021-1239

medium

4.8

CWE

13/1/2021

20/1/2021

CVE-2021-1239: XSS

Q: What is the affected software for CVE-2021-1239?

The affected software is the web-based management interface of Cisco Firepower Management Center (FMC) version 6.7.0 and earlier.

First published: Wed Jan 13 2021(Updated: )

Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected system. The vulnerabilities exist because the web-based management interface does not properly validate user-supplied input. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. 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 Firepower Management Center	<6.7.0

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-stored-xss-djKfCzf2

Frequently Asked Questions

What is the vulnerability ID for the Cisco Firepower Management Center web-based management interface vulnerabilities?
The vulnerability ID is CVE-2021-1239.
What is the severity rating of CVE-2021-1239?
The severity rating of CVE-2021-1239 is medium with a CVSS v3 base score of 4.8.
What is the affected software for CVE-2021-1239?
The affected software is the web-based management interface of Cisco Firepower Management Center (FMC) version 6.7.0 and earlier.
How can an attacker exploit CVE-2021-1239?
An authenticated, remote attacker can exploit CVE-2021-1239 by conducting a stored cross-site scripting (XSS) attack against a user of the interface of an affected system.
Is there a fix available for CVE-2021-1239?
Yes, Cisco has released a security advisory with remediation steps for CVE-2021-1239. Please refer to the Cisco Security Advisory for more information.

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