What is CVE-2022-20740?

CVE-2022-20740 is a vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software that allows an unauthenticated, remote attacker to conduct a cross-site scripting attack.

How does CVE-2022-20740 affect Cisco Firepower Management Center?

CVE-2022-20740 affects Cisco Firepower Management Center by allowing an attacker to perform cross-site scripting attacks through the web-based management interface.

What is the severity of CVE-2022-20740?

CVE-2022-20740 has a severity rating of medium.

How can an attacker exploit CVE-2022-20740?

An attacker can exploit CVE-2022-20740 by injecting malicious scripts into the web-based management interface and tricking users into executing them.

Is there a fix available for CVE-2022-20740?

Yes, Cisco has released a security advisory with instructions on how to mitigate the vulnerability.

Vulnerability/
CVE-2022-20740

medium

6.1

CWE

79 80

3/5/2022

6/11/2024

CVE-2022-20740: Cisco Firepower Management Center Software Cross-Site Scripting Vulnerability

First published: Tue May 03 2022(Updated: )

A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting attack. This vulnerability is due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit this vulnerability by convincing a user to click a link designed to pass malicious input to the interface. A successful exploit could allow the attacker to conduct cross-site scripting attacks and gain access to sensitive browser-based information.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Firepower Management Center	<6.6.5.2
Cisco Firepower Management Center	>=6.7.0<7.0.2
Cisco Firepower Management Center	>=7.1.0<7.1.0.1

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Reference Links

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

Frequently Asked Questions

What is CVE-2022-20740?
CVE-2022-20740 is a vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software that allows an unauthenticated, remote attacker to conduct a cross-site scripting attack.
How does CVE-2022-20740 affect Cisco Firepower Management Center?
CVE-2022-20740 affects Cisco Firepower Management Center by allowing an attacker to perform cross-site scripting attacks through the web-based management interface.
What is the severity of CVE-2022-20740?
CVE-2022-20740 has a severity rating of medium.
How can an attacker exploit CVE-2022-20740?
An attacker can exploit CVE-2022-20740 by injecting malicious scripts into the web-based management interface and tricking users into executing them.
Is there a fix available for CVE-2022-20740?
Yes, Cisco has released a security advisory with instructions on how to mitigate the vulnerability.

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version/cisco firepower management center/6.7.0
version/cisco firepower management center/7.1.0

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