PT-2021-19459 · Chiyu Technology · Bf-631+4

Published 2021-06-01 · Updated 2021-06-08 · CVE-2021-31643

Positive Technologies (AI Summary)

CVSS v2.0

3.5

Low

Base vector

AV:N/AC:M/Au:S/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions CHIYU Technology IoT devices, including SEMAC, Biosense, BF-630, BF-631, and Webpass (affected versions not specified)

Description An issue exists due to a lack of sanitization on the "if.cgi" component, specifically the username parameter. This affects several IoT devices from CHIYU Technology.

Recommendations For all affected devices, consider restricting access to the "if.cgi" component until a fix is available. As a temporary workaround, avoid using the username parameter in the affected component until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-31643

Affected Products

Bf-630

Bf-631

Biosense

Semac

Webpass

References · 7

• 🔥 https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31643 · Exploit
• 🔥 http://packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.html · Exploit
• 🔥 https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks · Exploit
• https://chiyu-tech.com/msg/message-Firmware-update-87.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31643 · Security Note
• https://t.me/cvenotify/15884 · Telegram Post
• https://t.me/cvenotify/15331 · Telegram Post