CVE-2021-31251
Summary
| CVE | CVE-2021-31251 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-06-04 21:15:00 UTC |
| Updated | 2021-06-08 18:46:00 UTC |
| Description | An authentication bypass in telnet server in BF-430 and BF431 232/422 TCP/IP Converter, BF-450M and SEMAC from CHIYU Technology Inc allows obtaining a privileged connection with the target device by supplying a specially malformed request and an attacker may force the remote telnet server to believe that the user has already authenticated. |
Risk And Classification
Problem Types: CWE-287
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Chiyu-tech | Bf-430 | - | All | All | All |
| Operating System | Chiyu-tech | Bf-430 Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Bf-431 | - | All | All | All |
| Operating System | Chiyu-tech | Bf-431 Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Bf-450m | - | All | All | All |
| Operating System | Chiyu-tech | Bf-450m Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Semac D1 | - | All | All | All |
| Operating System | Chiyu-tech | Semac D1 Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Semac D2 | - | All | All | All |
| Operating System | Chiyu-tech | Semac D2 Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Semac D2 N300 | - | All | All | All |
| Operating System | Chiyu-tech | Semac D2 N300 Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Semac D4 | - | All | All | All |
| Operating System | Chiyu-tech | Semac D4 Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Semac S1 Osdp | - | All | All | All |
| Operating System | Chiyu-tech | Semac S1 Osdp Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Semac S2 | - | All | All | All |
| Operating System | Chiyu-tech | Semac S2 Firmware | - | All | All | All |
| Hardware | Chiyu-tech | Semac S3v3 | - | All | All | All |
| Operating System | Chiyu-tech | Semac S3v3 Firmware | - | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| CHIYU IoT devices - Red Teaming and Malware Analysis | MISC | gitbook.seguranca-informatica.pt | |
| Dancing in the IoT: CHIYU devices vulnerable to remote attacks | MISC | seguranca-informatica.pt | |
| Firmware update | CONFIRM | www.chiyu-tech.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.