CVE-2021-31249

high-risk
Published 2021-06-04

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.

Do I need to act?

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90.0% chance of exploitation in next 30 days
EPSS score — higher than 10% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Chiyu-Tech

References (6)

Exploit https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices...
Exploit https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-...
Vendor Advisory https://www.chiyu-tech.com/msg/message-Firmware-update-87.html
Exploit https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices...
Exploit https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-...
Vendor Advisory https://www.chiyu-tech.com/msg/message-Firmware-update-87.html
53
/ 100
high-risk
Severity 24/34 · High
Exploitability 20/34 · Moderate
Exposure 9/34 · Low