medium
5.3
CWE
754
Advisory Published
Updated

CVE-2020-7549

First published: Fri Dec 11 2020(Updated: )

A CWE-754: Improper Check for Unusual or Exceptional Conditions 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 denial of HTTP and FTP services when a series of specially crafted requests is sent to the controller over HTTP.

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<3.4
Schneider-electric Bmxnoe0100
Schneider-electric Bmxnoe0110 Firmware<6.6
Schneider-electric Bmxnoe0110
Schneider-electric Bmxnoc0401 Firmware
Schneider-electric Bmxnoc0401
Schneider-electric 140noe77111 Firmware<7.3
Schneider-electric 140noe77111
Schneider-electric 140noc78100 Firmware
Schneider-electric 140noc78100
Schneider-electric 140noc78000 Firmware
Schneider-electric 140noc78000
Schneider-electric 140cpu65150 Firmware
Schneider-electric 140cpu65150
Schneider-electric Tsxety4103 Firmware
Schneider-electric Tsxety4103
Schneider-electric Tsxety5103 Firmware
Schneider-electric Tsxety5103
Schneider-electric Tsxp574634 Firmware
Schneider-electric Tsxp574634
Schneider-electric Tsxp575634 Firmware
Schneider-electric Tsxp575634
Schneider-electric Tsxp576634 Firmware
Schneider-electric Tsxp576634
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<3.4
Schneider-electric Bmxnoe0100
All of
Schneider-electric Bmxnoe0110 Firmware<6.6
Schneider-electric Bmxnoe0110
All of
Schneider-electric Bmxnoc0401 Firmware
Schneider-electric Bmxnoc0401
All of
Schneider-electric 140noe77111 Firmware<7.3
Schneider-electric 140noe77111
All of
Schneider-electric 140noc78100 Firmware
Schneider-electric 140noc78100
All of
Schneider-electric 140noc78000 Firmware
Schneider-electric 140noc78000
All of
Schneider-electric 140cpu65150 Firmware
Schneider-electric 140cpu65150
All of
Schneider-electric Tsxety4103 Firmware
Schneider-electric Tsxety4103
All of
Schneider-electric Tsxety5103 Firmware
Schneider-electric Tsxety5103
All of
Schneider-electric Tsxp574634 Firmware
Schneider-electric Tsxp574634
All of
Schneider-electric Tsxp575634 Firmware
Schneider-electric Tsxp575634
All of
Schneider-electric Tsxp576634 Firmware
Schneider-electric Tsxp576634

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    The vulnerability ID is CVE-2020-7549.

  • What is the severity rating of CVE-2020-7549?

    CVE-2020-7549 has a severity rating of medium (5.3).

  • Which software versions are affected by CVE-2020-7549?

    The affected software versions can be found in the security notification provided at the following reference: [link](https://www.se.com/ww/en/download/document/SEVD-2020-343-06/)

  • What is the CWE ID of CVE-2020-7549?

    The CWE ID of CVE-2020-7549 is CWE-754.

  • How can I mitigate the CVE-2020-7549 vulnerability?

    To mitigate the CVE-2020-7549 vulnerability, apply the necessary security updates as recommended by the software vendor.

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