CVE-2022-20834 : Exploit Details and Defense Strategies
Cisco Firepower Management Center (FMC) Software is affected by multiple vulnerabilities allowing for stored cross-site scripting (XSS) attacks. Learn about impact, affected systems, and mitigation measures.
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. Learn about the impact, affected systems, and mitigation strategies.
Understanding CVE-2022-20834
Cisco Firepower Management Center (FMC) Software is affected by multiple vulnerabilities in its web-based management interface. These vulnerabilities could be exploited by an authenticated, remote attacker to execute arbitrary script code.
What is CVE-2022-20834?
The vulnerabilities in the web-based management interface of Cisco FMC Software result from insufficient validation of user-supplied input. Attackers can insert crafted input into various data fields, enabling them to execute arbitrary script code or access sensitive information.
The Impact of CVE-2022-20834
A successful exploit could allow attackers to execute arbitrary script code in the context of the interface or access sensitive, browser-based information. In some cases, the vulnerabilities could lead to a temporary availability impact on portions of the FMC Dashboard.
Technical Details of CVE-2022-20834
Vulnerability Description
The vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface, enabling attackers to conduct stored cross-site scripting (XSS) attacks.
Affected Systems and Versions
Cisco Firepower Management Center (FMC) Software versions 6.1.0 through 7.1.0.2 are affected by these vulnerabilities.
Exploitation Mechanism
Attackers can exploit these vulnerabilities by inserting crafted input into data fields in the affected interface, leading to the execution of arbitrary script code.
Mitigation and Prevention
Immediate Steps to Take
Cisco recommends users to apply the necessary security updates provided by the vendor to mitigate the risks associated with these vulnerabilities.
Long-Term Security Practices
Implementing secure coding practices, user input validation, and regular security updates can help prevent similar vulnerabilities in the future.
Patching and Updates
Users are advised to regularly check for security advisories and updates from Cisco to ensure their systems are protected from known vulnerabilities.