HTTP Parameter Pollution Vulnerability in Shenzhen Dragon Brothers Fingerprint Bluetooth Round Padlock FB50
CVE-2019-13143

9.8CRITICAL

Key Information:

Vendor

Shenzhen Dragon Brothers

Status
Fb50 Firmware
Vendor
CVE Published:
6 August 2019

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-13143?

An HTTP parameter pollution vulnerability has been identified in the Shenzhen Dragon Brothers Fingerprint Bluetooth Round Padlock FB50 version 2.3. This flaw enables attackers to transfer ownership of the lock by exploiting easily accessible user ID, user name, and MAC address obtained through APIs in the mobile applications. By using just the MAC address of the padlock, a malicious actor can unbind the current user and take full control of the device, effectively locking out the legitimate owner.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

pwnfb50
Created by securelayer7

References

http://blog.securelayer7.net/fb50-smart-lock-vulnerabilit...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

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