CVE Vulnerability

CVE-2021-31642

A denial of service condition exists after an integer overflow in several IoT devices from CHIYU Technology, including BIOSENSE, Webpass, and BF-630, BF-631, and SEMAC. The vulnerability can be explored by sending an unexpected integer (> 32 bits) on the page parameter that will crash the web portal and making it unavailable until a reboot of the device.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.chiyu-tech.com/msg/message-Firmware-update-87.html Vendor Advisory
https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/ Exploit Third Party Advisory
https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31642 Exploit Third Party Advisory
http://packetstormsecurity.com/files/162934/CHIYU-IoT-Denial-Of-Service.html Exploit Third Party Advisory
Configurations

Configuration 1
Information

Published : 2021-06-01 03:15

Updated : 2021-06-08 07:09

NVD link : CVE-2021-31642

Mitre link : CVE-2021-31642

Products Affected
No products.
CWE
CWE-190