CVE-2021-31249
medium · 6.5A public exploit / detection template exists
Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →
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.
6.5
CVSS
18.0%
EPSS (exploit prob.)
97th
EPSS percentile
2021-06-04
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-74
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| chiyu-tech | bf-430_firmware | all versions |
| chiyu-tech | bf-430 | all versions |
| chiyu-tech | bf-431_firmware | all versions |
| chiyu-tech | bf-431 | all versions |
| chiyu-tech | bf-450m_firmware | all versions |
| chiyu-tech | bf-450m | all versions |
Check a specific version with /api/v1/cve/match.
References
- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31249
- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/
- https://www.chiyu-tech.com/msg/message-Firmware-update-87.html
- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31249
- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/
- https://www.chiyu-tech.com/msg/message-Firmware-update-87.html
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2021-31249