CVE-2019-16970 : What You Need to Know
Learn about CVE-2019-16970, a vulnerability in FusionPBX up to version 4.5.7 allowing XSS attacks. Find mitigation steps and preventive measures here.
FusionPBX up to version 4.5.7 is vulnerable to XSS attacks due to unsanitized input in the sip_status.php file.
Understanding CVE-2019-16970
This CVE identifies a security vulnerability in FusionPBX that could allow for cross-site scripting (XSS) attacks.
What is CVE-2019-16970?
This CVE pertains to a flaw in the sip_status.php file of FusionPBX versions up to 4.5.7. The vulnerability arises from the improper handling of user input, potentially enabling malicious actors to execute XSS attacks.
The Impact of CVE-2019-16970
The vulnerability in FusionPBX could lead to XSS attacks, allowing threat actors to inject malicious scripts into web pages viewed by other users, compromising data confidentiality and integrity.
Technical Details of CVE-2019-16970
FusionPBX's vulnerability to XSS attacks can have significant implications for system security.
Vulnerability Description
The issue lies in the sip_status.php file of FusionPBX versions up to 4.5.7, where an unsanitized "savemsg" variable from the URL is directly incorporated into HTML output, creating an XSS risk.
Affected Systems and Versions
- Product: FusionPBX
- Vendor: FusionPBX
- Versions affected: Up to 4.5.7
Exploitation Mechanism
The vulnerability allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to unauthorized access or data theft.
Mitigation and Prevention
Taking immediate action and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2019-16970.
Immediate Steps to Take
- Update FusionPBX to a patched version that addresses the XSS vulnerability.
- Implement input validation mechanisms to sanitize user input and prevent XSS attacks.
Long-Term Security Practices
- Regularly monitor and update web application security measures.
- Educate users and developers on secure coding practices to prevent similar vulnerabilities.
Patching and Updates
- Apply security patches provided by FusionPBX promptly to address the XSS vulnerability and enhance system security.