CVE-2022-30304 : Exploit Details and Defense Strategies
Learn about CVE-2022-30304, a vulnerability in FortiAnalyzer versions prior to 7.2.1, 7.0.4, and 6.4.8 allowing XSS attacks. Find mitigation steps and update recommendations.
This article provides details about CVE-2022-30304, including the vulnerability, impact, technical details, and mitigation steps.
Understanding CVE-2022-30304
CVE-2022-30304 is a vulnerability found in FortiAnalyzer versions prior to 7.2.1, 7.0.4, and 6.4.8, allowing a remote unauthenticated attacker to perform a stored cross-site scripting (XSS) attack.
What is CVE-2022-30304?
The vulnerability, classified under CWE-79, involves an improper neutralization of input during web page generation in FortiAnalyzer, potentially leading to a stored XSS attack via the URL parameter observed in the FortiWeb attack event logview.
The Impact of CVE-2022-30304
With a CVSS v3.1 base score of 4.2 (Medium), the vulnerability poses a risk of unauthorized code execution, particularly affecting the confidentiality and integrity of the system. However, the attack complexity is low, and no user interaction is required.
Technical Details of CVE-2022-30304
The affected versions of FortiAnalyzer include 7.2.0 to 7.2.1, 7.0.0 to 7.0.4, 6.4.0 to 6.4.8, 6.2.0 to 6.2.9, and 6.0.0 to 6.0.11. Users of these versions are vulnerable to the XSS exploit through URL parameters.
Vulnerability Description
The vulnerability arises from the mishandling of user input during the generation of web pages, enabling attackers to inject malicious scripts and execute them within the context of a legitimate webpage.
Affected Systems and Versions
FortiAnalyzer versions from 6.0.0 to 7.2.1 are at risk, with the potential for a remote unauthenticated attacker to exploit the XSS vulnerability.
Exploitation Mechanism
Attackers can exploit the vulnerability by manipulating URL parameters in the FortiWeb attack event logview, triggering a stored XSS attack.
Mitigation and Prevention
To mitigate the risks associated with CVE-2022-30304, users are advised to take immediate steps and adopt long-term security practices.
Immediate Steps to Take
- Upgrade FortiAnalyzer to version 7.2.2 or above
- Upgrade FortiAnalyzer to version 7.0.5 or above
- Upgrade FortiAnalyzer to version 6.4.9 or above
Long-Term Security Practices
Employ secure coding practices, regularly update software, and conduct security audits to prevent future vulnerabilities.
Patching and Updates
Stay informed about security patches and updates provided by Fortinet to address known vulnerabilities.