CVE-2022-20838 : Security Advisory and Response
Explore the details of CVE-2022-20838, multiple vulnerabilities in Cisco Firepower Management Center (FMC) Software's web-based management interface, enabling remote XSS attacks.
Multiple vulnerabilities have been discovered in the web-based management interface of Cisco Firepower Management Center (FMC) Software that could enable a remote attacker to execute a stored cross-site scripting (XSS) attack. This article delves into the details of CVE-2022-20838.
Understanding CVE-2022-20838
Cisco Firepower Management Center (FMC) Software's web-based interface is affected by multiple vulnerabilities that could be exploited by an authenticated, remote attacker to launch a stored cross-site scripting (XSS) attack against a user of the interface.
What is CVE-2022-20838?
The vulnerabilities in the web-based management interface of Cisco FMC Software are a result of insufficient validation of user-supplied input. Attackers can insert crafted input into various data fields, leading to the execution of arbitrary script code or access to sensitive browser-based information.
The Impact of CVE-2022-20838
Successful exploitation of these vulnerabilities could allow attackers to execute malicious script code within the interface's context, potentially causing a temporary availability impact on portions of the FMC Dashboard.
Technical Details of CVE-2022-20838
Vulnerability Description
The vulnerabilities result from inadequate validation of user input by the web-based management interface, enabling attackers to leverage stored cross-site scripting (XSS) attacks.
Affected Systems and Versions
The vulnerability affects multiple versions of Cisco Firepower Management Center (FMC) Software, ranging from 6.1.0 to 7.2.0.
Exploitation Mechanism
By inserting specially crafted input into various data fields within the affected interface, attackers can execute arbitrary script code and access sensitive information.
Mitigation and Prevention
Immediate Steps to Take
Users are advised to apply the necessary security patches provided by Cisco to address the vulnerabilities and prevent potential exploitation.
Long-Term Security Practices
Implementing secure coding practices, input validation mechanisms, and regular security assessments can help enhance the overall security posture against similar vulnerabilities.
Patching and Updates
Stay informed about security updates released by Cisco for the affected versions of the Firepower Management Center (FMC) Software to ensure protection against known vulnerabilities.