The vulnerability of the microprogrammed software of the MELSEC iQ-F Series FX5U and MELSEC iQ-F Series FX5UJ programmable logic controllers lies in the use of a password hash instead of a plain password for authentication. This allows an intruder to gain unauthorized access to the protected information.

The vulnerability of the microprogrammed logic controllers MELSEC iQ-F Series FX5U and MELSEC iQ-F Series FX5UJ lies in the use of a password hash instead of a plain password for authentication. Exploiting this vulnerability can allow an attacker, operating remotely, to gain unauthorized access t...