Vulnerability Description
A CRLF injection vulnerability was found on BF-430, BF-431, and BF-450M TCP/IP Converter devices from CHIYU Technology Inc due to a lack of validation on the parameter redirect= available on multiple CGI components.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Chiyu-Tech | Bf-430 Firmware | - |
| Chiyu-Tech | Bf-430 | - |
| Chiyu-Tech | Bf-431 Firmware | - |
| Chiyu-Tech | Bf-431 | - |
| Chiyu-Tech | Bf-450M Firmware | - |
| Chiyu-Tech | Bf-450M | - |
Related Weaknesses (CWE)
References
- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devicesExploitThird Party Advisory
- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-ExploitThird Party Advisory
- https://www.chiyu-tech.com/msg/message-Firmware-update-87.htmlVendor Advisory
- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devicesExploitThird Party Advisory
- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-ExploitThird Party Advisory
- https://www.chiyu-tech.com/msg/message-Firmware-update-87.htmlVendor Advisory
FAQ
What is CVE-2021-31249?
CVE-2021-31249 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A CRLF injection vulnerability was found on BF-430, BF-431, and BF-450M TCP/IP Converter devices from CHIYU Technology Inc due to a lack of validation on the parameter redirect= available on multiple ...
How severe is CVE-2021-31249?
CVE-2021-31249 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-31249?
Check the references section above for vendor advisories and patch information. Affected products include: Chiyu-Tech Bf-430 Firmware, Chiyu-Tech Bf-430, Chiyu-Tech Bf-431 Firmware, Chiyu-Tech Bf-431, Chiyu-Tech Bf-450M Firmware.