CVE-2019-14918 : Security Advisory and Response
Learn about CVE-2019-14918, a vulnerability in Billion Smart Energy Router SG600R2 Firmware v3.02.rc6 allowing XSS attacks. Find out how to mitigate and prevent this security risk.
The Billion Smart Energy Router SG600R2 Firmware v3.02.rc6 is vulnerable to XSS (Cross-Site Scripting) in the DHCP lease-status table, allowing attackers to execute code on the client-side.
Understanding CVE-2019-14918
This CVE involves a security vulnerability in the Billion Smart Energy Router SG600R2 Firmware v3.02.rc6 that enables XSS attacks through crafted DHCP request packets.
What is CVE-2019-14918?
XSS in the DHCP lease-status table in Billion Smart Energy Router SG600R2 Firmware v3.02.rc6 allows an attacker to inject arbitrary HTML/JavaScript code to achieve client-side code execution.
The Impact of CVE-2019-14918
The vulnerability permits attackers to inject malicious code into the DHCP lease-status table, potentially leading to unauthorized code execution on the client-side.
Technical Details of CVE-2019-14918
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The XSS vulnerability in Billion Smart Energy Router SG600R2 Firmware v3.02.rc6 enables attackers to insert their HTML or JavaScript code through specially crafted DHCP request packets.
Affected Systems and Versions
- Product: Billion Smart Energy Router SG600R2
- Version: Firmware v3.02.rc6
Exploitation Mechanism
- Attackers exploit the vulnerability by sending manipulated DHCP request packets to the etc_ro/web/internet/dhcpcliinfo.asp endpoint.
Mitigation and Prevention
Protecting systems from CVE-2019-14918 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor network traffic for any suspicious DHCP requests.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update firmware and software to patch known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address weaknesses.
- Educate users and IT staff on best practices for handling network security.
- Employ web application firewalls to filter and block malicious traffic.
Patching and Updates
- Stay informed about security advisories from the vendor and apply patches as soon as they are released.