A vulnerability classified as critical has been found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected is the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save&setting. The manipulation of the argument http_host leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-273258 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
| Link | Tags |
|---|---|
| https://vuldb.com/?id.273258 | vdb entry permissions required technical description |
| https://vuldb.com/?ctiid.273258 | signature vdb entry permissions required |
| https://vuldb.com/?submit.379313 | third party advisory vdb entry |
| https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/EX200/getSaveConfig.md | third party advisory exploit technical description |