Vulnerability identifier: #VU21508
Vulnerability risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
BMxCRA312xx
Hardware solutions /
Firmware
140CRA312xxx
Hardware solutions /
Firmware
Modicon Premium
Hardware solutions /
Firmware
Modicon M340
Hardware solutions /
Firmware
Modicon M580
Hardware solutions /
Firmware
Vendor: Schneider Electric
Description
The vulnerability allows a remote attacker to cause a denial of service (DoS) condition on the target system.
The vulnerability exists due to a boundary error when sending a specially crafted Modbus packet. A remote authenticated attacker can trigger memory corruption and cause a denial of service condition to the device that would force a restart to restore availability.
Mitigation
Vulnerable software versions
BMxCRA312xx: All versions
140CRA312xxx: All versions
Modicon Premium: All versions
Modicon M340: All versions
Modicon M580: 1.04 - 2.41
External links
http://www.schneider-electric.com/en/download/document/SEVD-2019-134-10/
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.