OTPulse

Siemens RUGGEDCOM APE180

MonitorCVSS 7.1ICS-CERT ICSA-23-285-07Oct 10, 2023
SiemensManufacturing
Attack path
Attack VectorNetwork
Auth RequiredLow
ComplexityLow
User InteractionNone needed
Summary

Multiple vulnerabilities exist in Nozomi Networks Guardian/CMC software before version V22.6.2, affecting the Siemens RUGGEDCOM APE1808 device. The issues include SQL injection (CWE-89), cross-site scripting (CWE-79), improper input validation (CWE-20), broken access controls (CWE-863), and cross-site request forgery (CWE-384). An authenticated attacker can read sensitive data from the management interface, bypass authorization controls, or perform unauthorized actions via forged requests. Siemens has not yet released firmware patches and recommends firewall restrictions and secure session practices as mitigations.

What this means
What could happen
An attacker with network access and valid user credentials could access sensitive data from the APE1808's web management interface or trigger minor denial of service by exploiting SQL injection, cross-site scripting, or access control flaws. This could expose industrial process information or briefly interrupt device management.
Who's at risk
Manufacturing facilities and utilities using Siemens RUGGEDCOM APE1808 for industrial edge computing or network appliance functions in critical infrastructure (water, electric, oil/gas) should be concerned. This device often sits at the boundary between IT and industrial control networks, so compromise could expose process data or enable lateral movement into PLCs and field devices.
How it could be exploited
An attacker with valid credentials reaches the web management interface over the network and injects SQL code or scripts into input fields (CWE-89, CWE-79), exploits improper access controls (CWE-863) to view unauthorized data, or leverages cross-site request forgery (CWE-384) after the target logs in and does not close the browser. Success depends on the target user's session remaining active.
Prerequisites
  • Valid user credentials for the web management interface
  • Network access to the APE1808 web management port
  • Target user must have an active browser session (for CSRF attacks)
Remotely exploitable via web interfaceRequires valid credentialsNo vendor patch availableLow-complexity attacks (SQL injection, XSS)Affects network security appliances with visibility to industrial traffic
Exploitability
Unlikely to be exploited — EPSS score 0.3%
Affected products (1)
ProductAffected VersionsFix Status
RUGGEDCOM APE1808<with Nozomi Guardian / CMC V22.6.2No fix (EOL)
Remediation & Mitigation
0/4
Do now
0/2
HARDENINGConfigure firewall rules to restrict network access to the APE1808 web management interface to only authorized engineering and monitoring workstations
WORKAROUNDImplement a mandatory user procedure requiring browser logout and closure after each session to prevent session hijacking or CSRF attacks
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HARDENINGEnforce strong password policies and multi-factor authentication (if supported) for web management accounts
Mitigations - no patch available
0/1
RUGGEDCOM APE1808 has reached End of Life. The vendor will not release a patch. Apply the following compensating controls:
HARDENINGSegment the APE1808 onto a dedicated management VLAN isolated from production networks, limiting lateral movement if credentials are compromised
View full CISA ICS-CERT advisory
API: /api/v1/advisories/6a6d1506-b0d2-4232-a55c-c96cbc215203

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