An Insufficiently Protected Credentials issue was discovered in Schneider Electric Modicon PLCs Modicon M241, all firmware versions, and Modicon M251, all firmware versions. Log-in credentials are sent over the network with Base64 encoding leaving them susceptible to sniffing. Sniffed credentials could then be used to log into the web application.
Un problema de credenciales protegidas insuficientemente fue detectado en PLCs Modicon M241, y Modicon M251 de Schneider Electric, en todas las versiones de firmware. Las credenciales de inicio de sesión se envían por medio de la red con codificación Base64 dejándolas susceptibles a ser espiadas. Las credenciales espiadas se podrían usar para iniciar sesión en la aplicación web.
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:N/A:N
| Access Vector | NETWORK |
|---|---|
| Access Complexity | LOW |
| Authentication | NONE |
| Confidentiality Impact | PARTIAL |
| Integrity Impact | NONE |
| Availability Impact | NONE |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-522
|
| [email protected] | Primary |
en
CWE-522
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| schneider-electric | modicon_m241_firmware | * | <built-in method update of dict object at 0x7e60a87b4300> | Operating System |
| schneider-electric | modicon_m251_firmware | * | <built-in method update of dict object at 0x7e61118a5600> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:* |