Tapo C120 v1 and C200 v5
contain a NULL pointer dereference in the HTTPS onboarding connect request parser. The interface is reachable without
authentication after initial setup and does not validate that a password field
is present for certain authentication and encryption parameter combinations,
allowing a malformed request from the same local network to crash the HTTPS service
Successful exploitation may
temporarily make HTTPS management functions unavailable. Repeated malformed
requests may sustain the denial-of-service condition, and recovery may in some
cases require a device reboot.
Attack Parameters
Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
tp-link systems inc.:tapo c120 v1
tp-link systems inc.:tapo c200 v5
References 5
https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-N…
f23511db-6c3e-4e32-a477-6aa17d310630
https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes
f23511db-6c3e-4e32-a477-6aa17d310630
https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-N…
f23511db-6c3e-4e32-a477-6aa17d310630
https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes
f23511db-6c3e-4e32-a477-6aa17d310630
https://www.tp-link.com/us/support/faq/5321/
f23511db-6c3e-4e32-a477-6aa17d310630