Vulnerability identifier: #VU12175
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:W/RC:C]
CVE-ID:
CWE-ID:
CWE-787
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
WebAccess HMI Designer
Server applications /
SCADA systems
Vendor: Advantech Co., Ltd
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to out-of-bounds write when handling malicious input. A remote attacker can trick the victim into processing specially crafted .pm3 files, cause the system to write outside the intended buffer area and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Mitigation
NCCIC recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:
Vulnerable software versions
WebAccess HMI Designer: 2.1 - 2.1.7.32
External links
http://ics-cert.us-cert.gov/advisories/ICSA-18-114-03
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.