Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TP-Link Systems | Tapo C200 V5 | < V5_1.4.6 Build 260709 Rel.27675n | V5_1.4.6 Build 260709 Rel.27675n |
| TP-Link Systems | Tapo C120 V1 | < V1_1.9.4 Build 260813 Rel.79754n | V1_1.9.4 Build 260813 Rel.79754n |
References
- https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes patch
- https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes patch
- https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes patch
- https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes patch
- https://www.tp-link.com/us/support/faq/5321/ vendor-advisory