modicon m251 firmware vulnerabilities and exploits

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5

CVSSv2

An Insufficiently Protected Credentials issue exists 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 cr...

Schneider-electric Modicon M241 Firmware Schneider-electric Modicon M251 Firmware

6.4

CVSSv2

A Predictable Value Range from Previous Values issue exists in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The a...

Schneider-electric Modicon M241 Firmware Schneider-electric Modicon M251 Firmware Schneider-electric Modicon M221 Firmware

6.4

CVSSv2

A Use of Insufficiently Random Values issue exists in Schneider Electric Modicon PLCs Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The session numbers generated by the web application are lacking randomi...

Schneider-electric Modicon M251 Firmware Schneider-electric Modicon M241 Firmware

7.8

CVSSv2

Improper Input Validation vulnerability exists in Modicon M241/M251 logic controllers firmware prior to V5.1.9.1 that could cause denial of service when specific crafted requests are sent to the controller over HTTP.

Schneider-electric Modicon M241 Firmware Schneider-electric Modicon M251 Firmware

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