IDEC PLCs
An attacker may obtain the user credentials from the communication between the PLC and the software. As a result, the PLC user program may be uploaded, altered, and/or downloaded.CVE-2021-37400 has been assigned to this vulnerability. A CVSS v3 base score of 7.6 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L). An attacker may obtain the user credentials from file servers, backup repositories, or ZLD files saved in SD cards. As a result, the PLC user program may be uploaded, altered, and/or downloaded.CVE-2021-37401 has been assigned to this vulnerability. A CVSS v3 base score of 7.6 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L). An attacker may obtain the PLC web server user credentials from the communication between the PLC and the software. As a result, the complete access privileges to the PLC web server may be obtained, and manipulation of the PLC output and/or suspension of the PLC may be conducted.CVE-2021-20826 has been assigned to this vulnerability. A CVSS v3 base score of 7.6 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L). An attacker may obtain the PLC web server user credentials from file servers, backup repositories, or ZLD files saved in SD cards. As a result, the attacker may access the PLC web server and hijack the PLC, and manipulation of the PLC output and/or suspension of the PLC may be conducted.CVE-2021-20827 has been assigned to this vulnerability. A CVSS v3 base score of 7.6 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).