#VU49106 Heap-based buffer overflow in Kepware products - CVE-2020-27263
Published: December 21, 2020
Vulnerability identifier: #VU49106
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-27263
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
KEPServerEX
ThingWorx Kepware Server
ThingWorx Industrial Connectivity
OPC-Aggregator
KEPServerEX
ThingWorx Kepware Server
ThingWorx Industrial Connectivity
OPC-Aggregator
Software vendor:
Kepware
Kepware
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing OPC UA messages. A remote attacker can send specially crafted OPC UA message, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.