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KLCERT-20-014: Session token exposed in Honeywell ControlEdge PLC and RTU

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KL-IDS KLCERT-20-014
CVE-IDS CVE-2020-10624
Publication date 2020.06.23
Researcher Nikolay Sklyarenko, KICS for Networks Industrial PDK
Description Exposed session token in Honeywell ControlEdge PLC and RTU.
Impact Successful exploitation of this vulnerability allows hijacking legitimate session.
Severity
CVSS v3 Base Score: 5.9
Vector CVSS:3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability Remotely
Difficulty Low
User interaction None
Existence of exploit Unknown
Affected products
Affected products Honeywell PLC versions R130.2, R140, R150, and R151
Honeywell RTU versions R101, R110, R140, R150, and R151
Mitigation
Vendor mitigation Honeywell provided detailed information for mitigation on the insecure communication in Control Edge PLC\RTU. Please access the support document SN2020-04-17-01-ConotrolEdge-PLC-and- and-RTU-Secure-Communication (login required). Download this document and follow the step by step instructions. The user must be logged in to access the security notification.
Timeline Nov 2019 – Vulnerabilities reported
Jun 2020 – Vendor releases patch
Jun 2020 – Advisory published