PatchSiren cyber security CVE debrief

CVE-2024-3387 Siemens CVE debrief

A weak (low bit strength) device certificate in Palo Alto Networks Panorama software enables an attacker to perform a meddler-in-the-middle (MitM) attack to capture encrypted traffic between the Panorama management server and the firewalls it manages. With sufficient computing resources, the attacker could break encrypted communication and expose sensitive information that is shared between the management server and the firewalls.

Vendor: Siemens
Product: RUGGEDCOM APE1808
CVSS: MEDIUM 5.3
CISA KEV: Not listed in stored evidence
Original CVE published: 2024-04-09
Original CVE updated: 2025-05-13
Advisory published: 2024-04-09
Advisory updated: 2025-05-13

Who should care

Organizations operating Siemens RUGGEDCOM APE1808 devices with Palo Alto Networks Virtual NGFW deployments, particularly those in industrial and critical infrastructure environments where Panorama central management is used for firewall administration. Security teams responsible for certificate lifecycle management and encrypted communications in OT/ICS networks should prioritize this fix.

Technical summary

CVE-2024-3387 stems from a weak (low bit strength) device certificate implementation in Palo Alto Networks Panorama software. The insufficient cryptographic strength allows an attacker with sufficient computing resources to perform a meddler-in-the-middle (MitM) attack, capturing and potentially decrypting encrypted traffic between the Panorama management server and managed firewalls. This exposure could lead to disclosure of sensitive management information. The vulnerability affects Siemens RUGGEDCOM APE1808 devices when configured with Palo Alto Networks Virtual NGFW. Remediation requires upgrading to Virtual NGFW V11.1.2-h3.

Defensive priority

medium

Recommended defensive actions

Upgrade Palo Alto Networks Virtual NGFW to version V11.1.2-h3 per vendor guidance
Contact Palo Alto Networks customer support to obtain patch and update information
Review certificate configurations on Panorama management servers and managed firewalls
Monitor network traffic for anomalous patterns indicative of potential MitM activity
Apply defense-in-depth strategies for industrial control systems per CISA guidance

Evidence notes

The source advisory (ICSA-24-102-04) identifies this vulnerability as affecting Siemens RUGGEDCOM APE1808 devices configured with Palo Alto Networks Virtual NGFW. The advisory was initially published on 2024-04-09 and most recently modified on 2025-05-13. A vendor fix is available requiring upgrade to Palo Alto Networks Virtual NGFW V11.1.2-h3.

Official resources

2024-04-09