Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-7564

Severity CVSS v4.0:
Pending analysis
Type:
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Publication date:
18/11/2020
Last modified:
02/12/2020

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:S/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.50
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:schneider-electric:modicon_tsxety4103_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:schneider-electric:modicon_tsxety4103:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_tsxety5103_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:schneider-electric:modicon_tsxety5103:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_tsxp574634_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:schneider-electric:modicon_tsxp574634:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_tsxp575634_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:schneider-electric:modicon_tsxp575634:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_tsxp576634_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:schneider-electric:modicon_tsxp576634:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_quantum_140noe77101_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:schneider-electric:modicon_quantum_140noe77101:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_quantum_140noe77111_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:schneider-electric:modicon_quantum_140noe77111:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_quantum_140noc78100_firmware:*:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools