Vulnerability Details : CVE-2020-7564
A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause write access and the execution of commands when uploading a specially crafted file on the controller over FTP.
Vulnerability category: Overflow
Products affected by CVE-2020-7564
- cpe:2.3:o:schneider-electric:modicon_quantum_140noe77101_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_quantum_140noe77111_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_tsxety4103_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_tsxety5103_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_tsxp574634_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_tsxp575634_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_tsxp576634_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_quantum_140noc78100_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_quantum_140cpu65150_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_quantum_140cpu65150c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_quantum_140cpu65160c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_quantum_140cpu65160_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmx_p34-2010_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmx_p34-2030_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmx_noc_0401_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmx_noe_0100_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmx_noe_0100h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmx_noe_0110_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmx_noe_0110h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmx_nor_0200h_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-7564
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-7564
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2020-7564
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: cybersecurity@se.com (Primary)
References for CVE-2020-7564
-
https://www.se.com/ww/en/download/document/SEVD-2020-315-01/
Security Notification - Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules | Schneider ElectricVendor Advisory
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