SB2021010713 - Multiple vulnerabilities in Schneider Electric Modicon M340, Quantum, Premium Legacy offers and their Communication Modules
Published: January 7, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2020-7562)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when uploading a specially crafted file on the controller over FTP. A remote authenticated attacker can trigger out-of-bounds read error and read contents of memory on the 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
2) Out-of-bounds write (CVE-ID: CVE-2020-7563)
The vulnerability allows a remote attacker to compromise vulnerable 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 out-of-bounds write and execute arbitrary code on the target 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
3) Buffer overflow (CVE-ID: CVE-2020-7564)
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
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.