CVE-2022-37454 Siemens CVE debrief

Who should care

Organizations operating Siemens RUGGEDCOM APE1808 devices in industrial control system environments, particularly those with network-exposed cryptographic operations. Security teams responsible for OT/ICS infrastructure, cryptographic library maintainers, and compliance officers tracking critical infrastructure vulnerabilities should prioritize assessment and remediation. The critical CVSS score and potential for arbitrary code execution warrant immediate attention for affected deployments.

Technical summary

The vulnerability exists in the Keccak XKCP SHA-3 reference implementation prior to commit fdc6fef. The sponge function interface contains an integer overflow condition that propagates to a buffer overflow. This implementation flaw can be exploited to achieve arbitrary code execution or to degrade cryptographic assurances. The attack surface is exposed network-accessible without authentication requirements. The vulnerability affects Siemens RUGGEDCOM APE1808 when configured with Palo Alto Networks Virtual NGFW, with remediation requiring upgrade to version V11.1.2-h3.

Defensive priority

critical

Recommended defensive actions

• Contact Siemens customer support to obtain patch and update information for Palo Alto Networks Virtual NGFW V11.1.2-h3
• Upgrade affected RUGGEDCOM APE1808 devices to the specified fixed version
• Review network segmentation for affected industrial control systems
• Apply defense-in-depth strategies per CISA ICS recommended practices
• Monitor for anomalous cryptographic behavior or unexpected code execution on affected devices

Evidence notes

The vulnerability description and affected product information are derived from CISA CSAF advisory ICSA-24-102-04, with vendor confirmation from Siemens product security documentation. The remediation guidance specifies Palo Alto Networks Virtual NGFW V11.1.2-h3 as the fixed version for RUGGEDCOM APE1808 deployments.

Official resources