#VU49107 Use-after-free in Kepware products - CVE-2020-27267
Published: December 21, 2020
Vulnerability identifier: #VU49107
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-27267
CWE-ID: CWE-416
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 perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error. A remote attacker can create and close OPC UA connections at a high rate that may cause a server to crash.
Remediation
Install updates from vendor's website.