medium5.3
CVE-2020-7549
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modic…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Schneider-Electric | Modicon M340 Bmxp341000 Firmware | before 3.30 |
| Schneider-Electric | Modicon M340 Bmxp342000 Firmware | before 3.30 |
| Schneider-Electric | Modicon M340 Bmxp3420102 Firmware | before 3.30 |
| Schneider-Electric | Modicon M340 Bmxp3420102cl Firmware | before 3.30 |
| Schneider-Electric | Modicon M340 Bmxp342020 Firmware | before 3.30 |
| Schneider-Electric | Modicon M340 Bmxp3420302 Firmware | before 3.30 |
| Schneider-Electric | Modicon M340 Bmxp3420302cl Firmware | before 3.30 |
| Schneider-Electric | Bmxnoe0100 Firmware | before 3.4 |
| Schneider-Electric | Bmxnoe0110 Firmware | before 6.6 |
| Schneider-Electric | Bmxnoc0401 Firmware | All versions |
| Schneider-Electric | 140noe77111 Firmware | before 7.3 |
| Schneider-Electric | 140noc78100 Firmware | All versions |