A vulnerability classified as critical has been found in Tenda AC8 16.03.34.09. Affected is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation of the argument wanMTU/wanSpeed/cloneType/mac/serviceName/serverName leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-261792. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://vuldb.com/?id.261792 | third party advisory vdb entry technical description |
| https://vuldb.com/?ctiid.261792 | signature vdb entry permissions required |
| https://vuldb.com/?submit.316495 | third party advisory vdb entry |
| https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC8/fromAdvSetMacMtuWan.md | third party advisory exploit |