CVE-2021-31249

MEDIUM NUCLEI

Chiyu-tech Bf-430 Firmware - Injection

Title source: rule

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.

Nuclei Templates (1)

CHIYU TCP/IP Converter - Carriage Return Line Feed Injection

MEDIUMby geeknik

References (3)

[Exploit, Third Party Advisory] https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31249

[Exploit, Third Party Advisory] https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/

[Vendor Advisory] https://www.chiyu-tech.com/msg/message-Firmware-update-87.html

Scores

CVSS v3 6.5

EPSS 0.8999

EPSS Percentile 99.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Details

CWE

CWE-74

Status published

Products (3)

chiyu-tech/bf-430_firmware

chiyu-tech/bf-431_firmware

chiyu-tech/bf-450m_firmware

Published Jun 04, 2021

Tracked Since Feb 18, 2026