CVE-2021-31641 Information

Description

An unauthenticated XSS vulnerability exists in several IoT devices from CHIYU Technology including BF-630 BF-450M BF-430 BF-431 BF631-W BF830-W Webpass BF-MINI-W and SEMAC due to a lack of sanitization when the HTTP 404 message is generated.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/#.YLY_lXmSlPY https://www.chiyu-tech.com/msg/message-Firmware-update-87.html https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31641 http://packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1