A vulnerability, which was classified as critical, was found in Tenda O3 1.0.0.10. Affected is the function fromDhcpSetSer. The manipulation of the argument dhcpEn/startIP/endIP/preDNS/altDNS/mask/gateway 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. VDB-272118 is the identifier assigned to this vulnerability. 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.272118 | vdb entry third party advisory technical description |
| https://vuldb.com/?ctiid.272118 | permissions required signature |
| https://vuldb.com/?submit.374585 | vdb entry third party advisory |
| https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/O3V2.0/fromDhcpSetSer.md | exploit |