Totolink LR1200GB cstecgi.cgi UploadFirmwareFile command injection

A vulnerability was found in Totolink LR1200GB 9.1.0u.6619_B20230130. It has been rated as critical. This issue affects the function UploadFirmwareFile of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-249857 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.