CVE-2019-12347 : Vulnerability Insights and Analysis
Learn about CVE-2019-12347, a stored cross-site scripting (XSS) vulnerability in pfSense 2.4.4-p3. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
A security vulnerability in pfSense 2.4.4-p3 allows for stored cross-site scripting (XSS) attacks. Attackers exploit this vulnerability by injecting a payload into the Name or Description field through the acme_accountkeys_edit.php action. This vulnerability arises as a result of errors in input validation mechanisms.
Understanding CVE-2019-12347
In pfSense 2.4.4-p3, a stored XSS vulnerability occurs when attackers inject a payload into the Name or Description field via an acme_accountkeys_edit.php action. The vulnerability occurs due to input validation errors.
What is CVE-2019-12347?
- A security vulnerability in pfSense 2.4.4-p3 allowing stored cross-site scripting (XSS) attacks
- Exploited by injecting a payload into the Name or Description field through acme_accountkeys_edit.php
The Impact of CVE-2019-12347
- Allows attackers to execute malicious scripts within the context of the affected site
- Potential for unauthorized access to sensitive information
Technical Details of CVE-2019-12347
A stored XSS vulnerability in pfSense 2.4.4-p3 that can be exploited by injecting a payload into specific fields.
Vulnerability Description
- Vulnerability Type: Stored Cross-Site Scripting (XSS)
- Attack Vector: Injection of malicious payload into the Name or Description field
Affected Systems and Versions
- pfSense 2.4.4-p3
Exploitation Mechanism
- Attackers inject malicious scripts via the acme_accountkeys_edit.php action
- Vulnerability arises from errors in input validation mechanisms
Mitigation and Prevention
Steps to address and prevent the CVE-2019-12347 vulnerability.
Immediate Steps to Take
- Update pfSense to the latest version
- Implement input validation to sanitize user inputs
- Monitor and filter user-generated content for malicious scripts
Long-Term Security Practices
- Regular security audits and code reviews
- Educate developers on secure coding practices
- Implement web application firewalls to detect and block XSS attacks
Patching and Updates
- Apply patches and updates provided by pfSense to address the vulnerability