A Permissions, Privileges, and Access Control vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to overwrite the original password with their password. If an attacker exploits this vulnerability and overwrite the password, the attacker can upload the original program from the PLC.
Existe una vulnerabilidad de permisos, privilegios y control de acceso en el producto Modicon M221, de Schneider Electric (todas las referencias y todas las versiones anteriores al firmware V1.6.2.0). La vulnerabilidad permite que usuarios no autorizados sobrescriban la contraseña original con su contraseña. Si un atacante explota la vulnerabilidad y sobrescribe la contraseña, el atacante puede subir el programa original desde el PLC.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | HIGH |
| Availability Impact | HIGH |
AV:N/AC:L/Au:N/C:P/I:P/A:P
| Access Vector | NETWORK |
|---|---|
| Access Complexity | LOW |
| Authentication | NONE |
| Confidentiality Impact | PARTIAL |
| Integrity Impact | PARTIAL |
| Availability Impact | PARTIAL |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-287
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary |
en
CWE-284
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| schneider-electric | modicon_m221_firmware | * | <built-in method update of dict object at 0x7e60eb26a980> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:* |