Vulnerability identifier: #VU15987
Vulnerability risk: Low
CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L/E:U/RL:W/RC:C]
CVE-ID:
CWE-ID:
CWE-345
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Modicon M221
Hardware solutions /
Firmware
Vendor: Schneider Electric
Description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists due to improper implementation of the network configuration module in UMAS protocol. A remote attacker can modify configuration parameters and intercept a target PLC’s network traffic.
Mitigation
Schneider Electric recommends the following mitigations to reduce the risk:
Vulnerable software versions
Modicon M221: All versions
External links
http://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD...
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.