13 July 2021
KLCERT-20-023: Rockwell Automation ISaGRAF Runtime: Information Disclosure due to Cleartext Transmission of Information over IXL protocol
Vendor
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CVE
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KLCERT
KLCERT-20-023
Timeline
Timeline
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Kaspersky ICS CERT advisory updated
15 November 2023
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Kaspersky ICS CERT advisory published
13 July 2021
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Rockwell Automation published the advisory
08 June 2021
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Rockwell Automation confirmed the vulnerability
11 March 2020
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Vulnerability reported
21 February 2020
Description
A remote attacker is able to read and modify captured data during a Man-in-the-Middle attack, because the affected software uses ISaGRAF eXchange Layer* protocol, which is unencrypted by design.
*ISaGRAF eXchange Layer (IXL) is Rockwell Automation's proprietary system protocol. Programming software ISaGRAF Workbench communicates over the protocol with based on ISaGRAF Runtime devices to manage program (resources) on the devices and to control the devices itself.
CVSS v3
Exploitability
⚠ Remotely exploitable: network access to port 1131/TCP is required
Attack complexity
Privilege required
User interaction
Confidentiality
Impact
An attacker could read and modify all data transferred between ISaGRAF Workbench and ISaGRAF Runtime if the communication is carried out over IXL protocol.
Affected products
- Rockwell Automation ISaGRAF Runtime Toolkit 5 before version 5.72.00
- AADvance Controller before version 1.041.3
- Based on ISaGRAF Runtime 5 controllers before version 5.72.00
- Micro800 family: All firmware versions
- ISaGRAF Runtime 5 before version 5.72.00
Mitigation
Rockwell Automation mitigation
Upgrade to ISaGRAF Runtime 5 version 5.72.00.
Customers should consider using proper network infrastructure controls, such as firewalls, UTM devices, VPN, or other security appliance.
To reduce risk, customers should ensure they are employing proper network segmentation and security controls. Specifically, network exposure for all control system devices should be minimized, and control systems should be behind firewalls and isolated from other networks when possible. Refer to the Converged Plantwide Ethernet (CPwE) Design and Implementation Guide for best practices deploying network segmentation and broader defense-in-depth strategies.
For ISaGRAF, restrict or block traffic on TCP 1131 from outside of the industrial control system network zone. For more information on the TCP/UDP ports used by ISaGRAF refer to product documentation.
Since ISaGRAF 5 Runtime is provided to a customer as a development kit, implementing least-privilege may vary from implementation to implementation based on the hardware in use.
For AADvance controllers, customers are encouraged to restrict or block traffic on TCP 1132 from outside of the industrial control system network zone.
For Micro800 family, to reduce risk, customers are encouraged to protect the controller with a password.1
Kaspersky publishes information on newly identified vulnerabilities in order to raise user awareness of the IT security threats detected. Kaspersky does not make any guarantees in respect of information received from vendors of products in which vulnerabilities have been identified, which is included in the following sections of the advisory: Affected Products, Vendor Mitigation.
Timeline
-
Kaspersky ICS CERT advisory updated
15 November 2023
-
Kaspersky ICS CERT advisory published
13 July 2021
-
Rockwell Automation published the advisory
08 June 2021
-
Rockwell Automation confirmed the vulnerability
11 March 2020
-
Vulnerability reported
21 February 2020