Summary
Nozomi reported eight vulnerabilities to WAGO affecting different firmwares installed on several devices.
Details
Impact
The identified vulnerabilities could lead to a denial-of-service attack or alter of the firmware and docker configuration.
Remediation
Update to Firmware 4.6.x (FW28). For G1 devices update to Firmware 3.10.11 (FW22 Patch 2). For the latest Custom Firmware, please contact the WAGO support.
Vulnerabilities 8
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High 8.8
WAGO: CODESYS V3 Configuration Authentication Bypass in Multiple Devices
A low privileged remote attacker may modify the configuration of the CODESYS V3 service through a missing authentication vulnerability which could lead to full system access and/or DoS.
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High 8.1
WAGO: Boot Mode Manipulation in Multiple Devices
A low privileged remote attacker may modify the boot mode configuration setup of the device, leading to modification of the firmware upgrade process or a denial-of-service attack.
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High 8.1
WAGO: Arbitrary File Overwrite in Multiple Devices
A low privileged remote attacker can overwrite an arbitrary file on the filesystem leading to a DoS and data loss.
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High 8.1
WAGO: Remote Arbitrary File Write with Root Privileges in multiple Devices
A low privileged remote attacker can specify an arbitrary file on the filesystem which may lead to an arbitrary file writes with root privileges.
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High 7.1
WAGO: BACNet Service Property Modification Due to Permission Misconfiguration in Multiple Devices
A low privileged remote attacker may modify the BACNet service properties due to incorrect permission assignment for critical resources which may lead to a DoS limited to BACNet communication.
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Medium 6.5
WAGO: Arbitrary File Overwrite Leading to Privileged File Read in Multiple Devices
A low privileged remote attacker can overwrite an arbitrary file on the filesystem which may lead to an arbitrary file read with root privileges.
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Medium 5.7
WAGO: Unauthorized Diagnostic Data Exposure in Multiple Devices
A low privileged remote attacker may gain access to forbidden diagnostic data due to incorrect permission assignment for critical resources.
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Medium 5.4
WAGO: Docker Settings Manipulation in Multiple Devices
A low privileged remote attacker may modify the docker settings setup of the device, leading to a limited DoS.
Revision history
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#4
Fix: quotation mark
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#3
Fix: corrected self-reference, fixed version
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#2
Added known mitigations as remediation. Added the Custom Firmware to the product branch. Added firmware 3.10.11 (Firmware 22 Patch 2) to the fixed products. This version was in revision 1 listed as vulnerable.
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#1
Initial document.
References
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WAGO PSIRT
https://www.wago.com/de-en/automation-technology/psirt
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CERT@VDE Security Advisories for WAGO
https://certvde.com/de/advisories/vendor/wago/
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VDE-2024-047: WAGO: Multiple vulnerabilities in docker configuration - HTML
https://certvde.com/en/advisories/VDE-2024-047