Tenda AC20 PowerSaveSet sscanf buffer overflow
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- xuanyu (VulDB User)
References
- https://vuldb.com/?id.338742
- https://vuldb.com/?ctiid.338742
- https://vuldb.com/?submit.726360
- https://github.com/xyh4ck/iot_poc/tree/main/Tenda%20AC20_Buffer_Overflow
- https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC20_Buffer_Overflow/Tenda%20AC20_Buffer_Overflow.md#poc
- https://www.tenda.com.cn/
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