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Siemens RUGGEDCOM APE1808

Act Now10ICS-CERT ICSA-24-338-02Nov 22, 2024
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary

Siemens RUGGEDCOM APE1808 contains multiple critical vulnerabilities in its management interface that allow unauthenticated remote attackers to execute arbitrary code. The vulnerabilities stem from missing input validation (CWE-306, CWE-22), null pointer dereference (CWE-476), and improper error handling. All versions are affected. Palo Alto Networks has disclosed details related to these issues. Siemens is developing fixes but has not yet released patched versions. Workarounds include restricting management interface access to trusted IP addresses and implementing proper network segmentation.

What this means
What could happen
An attacker with network access to the management interface can execute arbitrary code on the RUGGEDCOM APE1808, potentially taking control of industrial network communications and disrupting connectivity between critical manufacturing systems and remote sites.
Who's at risk
Manufacturing facilities using Siemens RUGGEDCOM APE1808 devices for industrial network communication and edge connectivity. This includes any site relying on APE1808 for remote connectivity to PLCs, SCADA systems, RTUs, or other control equipment across geographically distributed locations.
How it could be exploited
An attacker on the network sends a specially crafted request to the management interface of the APE1808 (ports typically 80/443 or management-specific ports). No credentials are required. The device processes the malformed request, leading to code execution that allows the attacker to run commands with full system privileges on the device.
Prerequisites
  • Network reachability to the RUGGEDCOM APE1808 management interface (likely HTTP/HTTPS ports)
  • No authentication required
  • Device must be running any version of firmware (all versions affected)
remotely exploitableno authentication requiredlow complexityactively exploited (KEV)CVSS score 10.0 (critical)no patch available yetaffects industrial communications infrastructure
Exploitability
Actively exploited — confirmed by CISA KEV
Affected products (1)
ProductAffected VersionsFix Status
RUGGEDCOM APE1808All versionsNo fix (EOL)
Remediation & Mitigation
0/5
Do now
0/4
HOTFIXContact Siemens customer support immediately to obtain and deploy patch and update information for RUGGEDCOM APE1808
WORKAROUNDRestrict network access to the management interface to trusted internal IP addresses only using firewall rules or IP whitelisting
HARDENINGImplement network segmentation to isolate the APE1808 on a dedicated management VLAN separate from production networks
HARDENINGMonitor all access to the management interface and log connection attempts for security incident detection
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:
HARDENINGReview and apply Siemens operational security guidelines for industrial environment configuration as described in product manuals
View full CISA ICS-CERT advisory
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Siemens RUGGEDCOM APE1808 | CVSS 10 - OTPulse