OTPulse

Siemens RUGGEDCOM APE1808

MonitorCVSS 6ICS-CERT ICSA-24-284-11Oct 8, 2024
SiemensManufacturing
Attack path
Attack VectorNetwork
Auth RequiredLow
ComplexityHigh
User InteractionNone needed
Summary

Siemens RUGGEDCOM APE1808LNX and APE1808LNX CC devices are affected by an improper access control vulnerability (CWE-863). The issue stems from related vulnerabilities in Nozomi Guardian/CMC monitoring software versions prior to 24.2.0. An authenticated attacker could access the device and bypass authorization controls to read or modify sensitive configuration data. Both affected RUGGEDCOM models have reached end-of-life status and will not receive direct firmware patches. Siemens recommends upgrading the associated Nozomi Guardian/CMC management software to version 24.3.1, restricting access to trusted personnel, and implementing proper network isolation and access controls.

What this means
What could happen
An attacker with login credentials could access the RUGGEDCOM APE1808 network management device and potentially read sensitive configuration data or make unauthorized changes to system settings, affecting network availability and device management capabilities.
Who's at risk
Manufacturing facilities that use Siemens RUGGEDCOM APE1808 industrial network appliances for OT network management. This includes plants running either the APE1808LNX or APE1808LNX CC variants. The vulnerability primarily affects organizations using Nozomi Guardian/CMC monitoring software that manages these devices.
How it could be exploited
An attacker must first obtain valid login credentials for the RUGGEDCOM APE1808 management interface. Once authenticated, they can access the device over the network and exploit an improper access control vulnerability to read or modify configurations beyond their assigned permissions.
Prerequisites
  • Valid login credentials for RUGGEDCOM APE1808 management interface
  • Network access to the RUGGEDCOM APE1808 (port and protocol depend on deployment configuration)
  • Device must be reachable from attacker's network segment
authentication requiredlow exploit probabilityaccess control vulnerabilityno patch available for base device
Exploitability
Unlikely to be exploited — EPSS score 0.2%
Affected products (2)
2 EOL
ProductAffected VersionsFix Status
RUGGEDCOM APE1808LNX CCAll versionsNo fix (EOL)
RUGGEDCOM APE1808LNXAll versionsNo fix (EOL)
Remediation & Mitigation
0/4
Do now
0/2
WORKAROUNDRestrict network access to RUGGEDCOM APE1808 management interface to trusted personnel and systems only, using firewall rules or access control lists
HARDENINGReview and enforce strong authentication practices (strong passwords, multi-factor authentication if supported) for all RUGGEDCOM APE1808 management accounts
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpgrade Nozomi Guardian/CMC to version 24.3.1 or later
Mitigations - no patch available
0/1
The following products have reached End of Life with no planned fix: RUGGEDCOM APE1808LNX CC, RUGGEDCOM APE1808LNX. Apply the following compensating controls:
HARDENINGImplement network segmentation to isolate RUGGEDCOM APE1808 and related OT devices from direct internet access
View full CISA ICS-CERT advisory
API: /api/v1/advisories/55d69509-eccc-4558-abfd-792520e6ee89

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Siemens RUGGEDCOM APE1808 | CVSS 6 - OTPulse