VulnerabilityModified
CVE-2021-31249
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.
MEDIUM 6.5EPSS 18.0%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 18.0%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 18.00% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- chiyu-tech/bf-430 firmware · chiyu-tech/bf-431 firmware · chiyu-tech/bf-450m firmware
- Source
- cve@mitre.org
References
- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31249Exploit, Third Party Advisory
- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/Exploit, Third 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-devices#cve-2021-31249Exploit, Third Party Advisory
- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/Exploit, Third Party Advisory
- https://www.chiyu-tech.com/msg/message-Firmware-update-87.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.