CVE-2022-20843 : Security Advisory and Response
Learn about CVE-2022-20843, affecting Cisco Firepower Management Center Software, allowing attackers to conduct cross-site scripting attacks. Find out the impact, affected versions, and mitigation steps.
Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack.
Understanding CVE-2022-20843
Cisco Firepower Management Center (FMC) Software is affected by multiple vulnerabilities that allow an attacker to execute malicious script code through the web-based management interface.
What is CVE-2022-20843?
The vulnerabilities in Cisco FMC Software result from inadequate validation of user input, enabling an attacker to insert crafted data into the interface. Exploiting these flaws could lead to the execution of arbitrary script code in the context of the interface.
The Impact of CVE-2022-20843
Successful exploitation could grant an attacker the ability to access sensitive information, manipulate browser-based data, and cause temporary availability issues in the FMC Dashboard.
Technical Details of CVE-2022-20843
Vulnerability Description
The stored cross-site scripting (XSS) vulnerabilities in Cisco FMC Software allow an authenticated, remote attacker to insert malicious code via various data fields in the web-based management interface.
Affected Systems and Versions
Numerous versions of Cisco Firepower Management Center Software ranging from 6.1.0 to 7.1.0.2 are affected by these vulnerabilities.
Exploitation Mechanism
An attacker with remote access can exploit the lack of input validation in the interface to insert malicious script code, potentially compromising the integrity and confidentiality of data.
Mitigation and Prevention
Immediate Steps to Take
Users are advised to update Cisco FMC Software to the latest patched versions to mitigate the risk of exploitation. It is crucial to deploy security updates promptly.
Long-Term Security Practices
Implement strict input validation mechanisms in web applications to prevent cross-site scripting attacks. Regular security audits and user training on identifying phishing attempts are recommended.
Patching and Updates
Cisco has released patches to address the vulnerabilities in affected versions of FMC Software. Users should apply these patches as soon as possible to protect their systems from potential exploitation.