critical
9.8
CWE
306
Advisory Published
Updated

CVE-2020-7540

First published: Fri Dec 11 2020(Updated: )

A CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause unauthenticated command execution in the controller when sending special HTTP requests.

Credit: cybersecurity@se.com cybersecurity@se.com

Affected SoftwareAffected VersionHow to fix
Schneider-electric Bmxp341000 Firmware<3.30
Schneider-electric Bmxp341000
Schneider-electric Bmxp342000 Firmware<3.30
Schneider-electric Bmxp342000
Schneider-electric Bmxp3420102 Firmware<3.30
Schneider-electric Bmxp3420102
Schneider-electric Bmxp3420102cl Firmware<3.30
Schneider-electric Bmxp3420102cl
Schneider-electric Bmxp342020 Firmware<3.30
Schneider-electric Bmxp342020
Schneider-electric Bmxp3420302 Firmware<3.30
Schneider-electric Bmxp3420302
Schneider-electric Bmxp3420302cl Firmware<3.30
Schneider-electric Bmxp3420302cl
Schneider-electric Bmxnoe0100 Firmware<3.3
Schneider-electric Bmxnoe0100
Schneider-electric Bmxnoe0110 Firmware<6.5
Schneider-electric Bmxnoe0110
Schneider-electric 140noe77101 Firmware<7.1
Schneider-electric 140noe77101
Schneider-electric 140noe77111 Firmware<7.1
Schneider-electric 140noe77111
Schneider-electric 140cpu65150 Firmware<6.1
Schneider-electric 140cpu65150
Schneider-electric 140cpu65160 Firmware<6.1
Schneider-electric 140cpu65160
Schneider-electric 140noc78000 Firmware<1.74
Schneider-electric 140noc78000
Schneider-electric 140noc78100 Firmware<1.74
Schneider-electric 140noc78100
Schneider-electric 140noc77101 Firmware<1.08
Schneider-electric 140noc77101
Schneider-electric Tsxp574634 Firmware<6.1
Schneider-electric Tsxp574634
Schneider-electric Tsxp575634 Firmware<6.1
Schneider-electric Tsxp575634
Schneider-electric Tsxp576634 Firmware<6.1
Schneider-electric Tsxp576634
Schneider-electric Tsxety4103 Firmware<6.2
Schneider-electric Tsxety4103
Schneider-electric Tsxety5103 Firmware<6.4
Schneider-electric Tsxety5103
Schneider-electric Bmxnoc0401 Firmware<2.10
Schneider-electric Bmxnoc0401
Schneider-electric Bmxnor200h Firmware
Schneider-electric Bmxnor200h
All of
Schneider-electric Modicon M340 Bmxp341000 Firmware<3.30
Schneider-electric Modicon M340 Bmxp341000
All of
Schneider-electric Modicon M340 Bmxp342000 Firmware<3.30
Schneider-electric Modicon M340 Bmxp342000
All of
Schneider-electric Modicon M340 Bmxp3420102 Firmware<3.30
Schneider-electric Modicon M340 Bmxp3420102
All of
Schneider-electric Modicon M340 Bmxp3420102cl Firmware<3.30
Schneider-electric Modicon M340 Bmxp3420102cl
All of
Schneider-electric Modicon M340 Bmxp342020 Firmware<3.30
Schneider-electric Modicon M340 Bmxp342020
All of
Schneider-electric Modicon M340 Bmxp3420302 Firmware<3.30
Schneider-electric Modicon M340 Bmxp3420302
All of
Schneider-electric Modicon M340 Bmxp3420302cl Firmware<3.30
Schneider-electric Modicon M340 Bmxp3420302cl
All of
Schneider-electric Bmxnoe0100 Firmware<3.3
Schneider-electric Bmxnoe0100
All of
Schneider-electric Bmxnoe0110 Firmware<6.5
Schneider-electric Bmxnoe0110
All of
Schneider-electric 140noe77101 Firmware<7.1
Schneider-electric 140noe77101
All of
Schneider-electric 140noe77111 Firmware<7.1
Schneider-electric 140noe77111
All of
Schneider-electric 140cpu65150 Firmware<6.1
Schneider-electric 140cpu65150
All of
Schneider-electric 140cpu65160 Firmware<6.1
Schneider-electric 140cpu65160
All of
Schneider-electric 140noc78000 Firmware<1.74
Schneider-electric 140noc78000
All of
Schneider-electric 140noc78100 Firmware<1.74
Schneider-electric 140noc78100
All of
Schneider-electric 140noc77101 Firmware<1.08
Schneider-electric 140noc77101
All of
Schneider-electric Tsxp574634 Firmware<6.1
Schneider-electric Tsxp574634
All of
Schneider-electric Tsxp575634 Firmware<6.1
Schneider-electric Tsxp575634
All of
Schneider-electric Tsxp576634 Firmware<6.1
Schneider-electric Tsxp576634
All of
Schneider-electric Tsxety4103 Firmware<6.2
Schneider-electric Tsxety4103
All of
Schneider-electric Tsxety5103 Firmware<6.4
Schneider-electric Tsxety5103
All of
Schneider-electric Bmxnoc0401 Firmware<2.10
Schneider-electric Bmxnoc0401
All of
Schneider-electric Bmxnor200h Firmware
Schneider-electric Bmxnor200h

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2020-7540?

    The severity of CVE-2020-7540 is critical with a severity value of 9.8.

  • Which products are affected by CVE-2020-7540?

    The Web Server on Modicon M340, Legacy Offers Modicon Quantum, and Modicon Premium and associated Communication Modules are affected by CVE-2020-7540.

  • What is the vulnerability description of CVE-2020-7540?

    CVE-2020-7540 is a CWE-306: Missing Authentication for Critical Function vulnerability that could cause unauthenticated command execution.

  • How can the vulnerability be fixed?

    To fix CVE-2020-7540, it is recommended to apply the necessary security patches provided by Schneider Electric.

  • Where can I find more information about CVE-2020-7540?

    More information about CVE-2020-7540 can be found at the following link: [https://www.se.com/ww/en/download/document/SEVD-2020-343-04/](https://www.se.com/ww/en/download/document/SEVD-2020-343-04/)

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