Vulnerability CVE-2021-31643
Published: 2021-06-01

Description:
An XSS vulnerability exists in several IoT devices from CHIYU Technology, including SEMAC, Biosense, BF-630, BF-631, and Webpass due to a lack of sanitization on the component if.cgi - username parameter.

See advisories in our WLB2 database:
Topic
Author
Date
Low
CHIYU IoT Cross Site Scripting
sirpedrotavares
02.06.2021

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

CVSS2 => (AV:N/AC:M/Au:S/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.5/10
2.9/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None

 References:
https://www.chiyu-tech.com/msg/message-Firmware-update-87.html
https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31643
https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/
http://packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.html
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