CVE Vulnerability

CVE-2019-13143

An HTTP parameter pollution issue was discovered on Shenzhen Dragon Brothers Fingerprint Bluetooth Round Padlock FB50 2.3. With the user ID, user name, and the lock's MAC address, anyone can unbind the existing owner of the lock, and bind themselves instead. This leads to complete takeover of the lock. The user ID, name, and MAC address are trivially obtained from APIs found within the Android or iOS application. With only the MAC address of the lock, any attacker can transfer ownership of the lock from the current user, over to the attacker's account. Thus rendering the lock completely inaccessible to the current user.

9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 8.5

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact COMPLETE

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
http://blog.securelayer7.net/fb50-smart-lock-vulnerability-disclosure/ Exploit Third Party Advisory
Configurations

Configuration 1
Information

Published : 2019-08-06 06:15

Updated : 2020-08-24 05:37

NVD link : CVE-2019-13143

Mitre link : CVE-2019-13143

Products Affected

Fb50 Firmware

Shenzhen Dragon Brothers

CWE
CWE-20