Vulnerability Details : CVE-2019-13143
Potential exploit
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.
Vulnerability category: Input validation
Products affected by CVE-2019-13143
- cpe:2.3:o:shenzhen_dragon_brothers:fb50_firmware:2.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-13143
4.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-13143
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.0
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:C |
10.0
|
8.5
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-13143
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-13143
-
http://blog.securelayer7.net/fb50-smart-lock-vulnerability-disclosure/
FB50 Smart Lock Vulnerability Disclosure (CVE-2019-13143) - SecureLayer7Exploit;Third Party Advisory
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