CVE-2020-8839 : Exploit Details and Defense Strategies
Learn about CVE-2020-8839, a Stored XSS vulnerability on CHIYU BF-430 232/485 TCP/IP Converter devices before 1.16.00. Find out the impact, affected systems, exploitation method, and mitigation steps.
A Stored XSS vulnerability was found on CHIYU BF-430 232/485 TCP/IP Converter devices before version 1.16.00, allowing attackers to execute malicious scripts via the /if.cgi TF_submask field.
Understanding CVE-2020-8839
This CVE identifies a security issue in CHIYU BF-430 232/485 TCP/IP Converter devices that could be exploited by attackers.
What is CVE-2020-8839?
Stored XSS vulnerability on CHIYU BF-430 232/485 TCP/IP Converter devices before version 1.16.00.
The Impact of CVE-2020-8839
The vulnerability could be exploited by attackers to inject and execute malicious scripts on affected devices.
Technical Details of CVE-2020-8839
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability allows for Stored XSS on CHIYU BF-430 232/485 TCP/IP Converter devices before version 1.16.00 via the /if.cgi TF_submask field.
Affected Systems and Versions
- Product: CHIYU BF-430 232/485 TCP/IP Converter
- Versions affected: Before 1.16.00
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious scripts through the /if.cgi TF_submask field.
Mitigation and Prevention
Protecting systems from CVE-2020-8839 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update affected devices to version 1.16.00 or newer.
- Implement network-level protections to filter and sanitize input data.
Long-Term Security Practices
- Regularly monitor and audit network traffic for suspicious activities.
- Educate users on safe browsing habits and awareness of social engineering tactics.
Patching and Updates
- Apply security patches provided by the vendor promptly to address the vulnerability.