OTPulse

Siemens RUGGEDCOM APE1808

MonitorCVSS 7.5ICS-CERT ICSA-25-162-02Jun 10, 2025
SiemensManufacturing
Attack path
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary

Siemens RUGGEDCOM APE1808 is affected by vulnerabilities in PAN-OS (Palo Alto Networks). The vulnerabilities include cross-site scripting (CWE-79), information exposure through query strings (CWE-497), OS command injection (CWE-78), improper input sanitization (CWE-83), missing error handling (CWE-754), and improper certificate validation (CWE-295). These vulnerabilities could allow remote attackers without authentication to cause denial of service or potentially execute code on affected devices. Siemens has not planned a fix for RUGGEDCOM APE1808 and is recommending workarounds.

What this means
What could happen
An attacker could remotely disrupt the APE1808's VPN or management functions, causing the device to become unavailable. In some cases, the vulnerabilities could allow remote command execution that affects network traffic routing or security functions.
Who's at risk
Organizations running Siemens RUGGEDCOM APE1808 edge protection appliances should care. The APE1808 is a hardened communications device used in manufacturing and critical infrastructure to provide secure VPN and remote access. Vulnerability here threatens both OT network segmentation and remote management capabilities.
How it could be exploited
An attacker on the network or internet could send specially crafted requests to the APE1808's web interface or management port without authentication. The device could fail to properly validate input or SSL certificates, allowing the attacker to trigger a denial-of-service condition or, depending on the specific vulnerability, inject commands that are executed on the device.
Prerequisites
  • Network access to the APE1808 management interface (typically port 443 or similar)
  • No authentication required
remotely exploitableno authentication requiredlow complexityno patch availableaffects network security appliance
Exploitability
Some exploitation risk — EPSS score 1.8%
Public Proof-of-Concept (PoC) on GitHub (9 repositories)
Affected products (1)
ProductAffected VersionsFix Status
RUGGEDCOM APE1808All versionsNo fix (EOL)
Remediation & Mitigation
0/5
Do now
0/3
WORKAROUNDDisable Clientless VPN on RUGGEDCOM APE1808
HARDENINGRestrict network access to APE1808 management interface to only authorized networks using firewall rules
WORKAROUNDReview and implement Palo Alto Networks' security advisories and mitigations for PAN-OS vulnerabilities
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXContact Siemens customer support to receive available patch and update information
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:
HARDENINGPlace RUGGEDCOM APE1808 behind a perimeter firewall and isolate from the business network
View full CISA ICS-CERT advisory
API: /api/v1/advisories/e93af268-5302-4672-9d71-cdb8c5e1205a

Get OT security insights every Tuesday

Advisory breakdowns, a weekly summary, and incident analyses for the people actually defending OT environments. Free, no account required.