Description
A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The impacted element is the function sscanf of the file /goform/PowerSaveSet. The manipulation of the argument powerSavingEn/time/powerSaveDelay/ledCloseType leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Tenda | AC20 | 16.03.08.0, 16.03.08.1, 16.03.08.2, 16.03.08.3, 16.03.08.4, 16.03.08.5, 16.03.08.6, 16.03.08.7, 16.03.08.8, 16.03.08.9, 16.03.08.10, 16.03.08.11, 16.03.08.12 | — |
References
- VDB-338742 | Tenda AC20 PowerSaveSet sscanf buffer overflow vdb-entry technical-description
- VDB-338742 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #726360 | Tenda Tenda AC20 V16.03.08.12 Buffer Overflow third-party-advisory
- https://github.com/xyh4ck/iot_poc/tree/main/Tenda%20AC20_Buffer_Overflow broken-link exploit
- https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC20_Buffer_Overflow/Tenda%20AC20_Buffer_Overflow.md#poc broken-link exploit
- https://www.tenda.com.cn/ product