CVE-2021-31641

Public Exploit

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.91% Top 20%
Vendor Advisory chiyu-tech.com
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2021-31641?
CVE-2021-31641 has been scored as a medium severity vulnerability.
How to fix CVE-2021-31641?
To fix CVE-2021-31641, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-31641 being actively exploited in the wild?
It is possible that CVE-2021-31641 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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