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CVE-2021-31251

PoC ×2—
CVSS 3.1
9.8 critical
EPSS
36%p98
Published
()
Modified
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.

Vendors
chiyu-tech
Products
bf-430 firmware, bf-431 firmware, bf-450m firmware, semac s2 firmware, semac d1 firmware, semac d2 firmware, semac d4 firmware, semac s3v3 firmware, semac d2 n300 firmware, semac s1 osdp firmware
Weakness
CWE-287
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (35.7%)

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