Vulnerability identifier: #VU49332

Vulnerability risk: Medium

CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-7564

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BMX P34x
Hardware solutions / Firmware
BMX NOE 0100 (H)
Hardware solutions / Firmware
BMX NOE 0110 (H)
Hardware solutions / Firmware
BMX NOC 0401
Hardware solutions / Firmware
BMX NOR 0200H
Hardware solutions / Firmware
TSXP574634
Hardware solutions / Firmware
TSXP575634
Hardware solutions / Firmware
TSXP576634
Hardware solutions / Firmware
TSXETY4103
Hardware solutions / Firmware
TSXETY5103
Hardware solutions / Firmware
140CPU65xxxxx
Hardware solutions / Firmware
140NOE771x1
Hardware solutions / Firmware
140NOC78x00
Hardware solutions / Firmware
140NOC77101
Hardware solutions / Firmware

Vendor: Schneider Electric

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when uploading a specially crafted file on the controller over FTP. A remote authenticated attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

This vulnerability affects the following Modicon products:

• M340 CPUs
  • BMX P34x, all versions
• M340 Communication Ethernet modules
  • BMX NOE 0100 (H), all versions
  • BMX NOE 0110 (H), all versions
  • BMX NOC 0401, all versions
  • BMX NOR 0200H, all versions
• Premium processors with integrated Ethernet COPRO
  • TSXP574634, TSXP575634, TSXP576634, all versions
• Premium communication modules
  • TSXETY4103, all versions
  • TSXETY5103, all versions
• Quantum processors with integrated Ethernet COPRO
  • 140CPU65xxxxx, all versions
• Quantum communication modules
  • 140NOE771x1, all versions
  • 140NOC78x00, all versions
  • 140NOC77101, all versions

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

BMX P34x: All versions

BMX NOE 0100 (H): All versions

BMX NOE 0110 (H): All versions

BMX NOC 0401: All versions

BMX NOR 0200H: All versions

TSXP574634: All versions

TSXP575634: All versions

TSXP576634: All versions

TSXETY4103: All versions

TSXETY5103: All versions

140CPU65xxxxx: All versions

140NOE771x1: All versions

140NOC78x00: All versions

140NOC77101: All versions

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External links
http://www.se.com/ww/en/download/document/SEVD-2020-315-01/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.