CVE-2024-35207 Siemens CVE debrief

Who should care

Organizations operating Siemens SINEC Traffic Analyzer devices in industrial environments, particularly those with web interfaces exposed to operational networks or administrative workstations. Security teams responsible for OT/ICS infrastructure, network administrators managing industrial Ethernet diagnostics, and compliance officers tracking CVE remediation for critical infrastructure assets should prioritize this patch.

Technical summary

The web interface of Siemens SINEC Traffic Analyzer (6GK8822-1BG01-0BA0) lacks proper CSRF protections, allowing an attacker to craft malicious requests that execute with the privileges of an authenticated victim. The attack requires user interaction (clicking a malicious link) but can result in complete compromise of device confidentiality, integrity, and availability. The CVSS 3.1 vector indicates a local attack vector with high impact across all security dimensions. Siemens has addressed this in version 1.2.

Defensive priority

HIGH

Recommended defensive actions

• Update Siemens SINEC Traffic Analyzer to version 1.2 or later
• Implement network segmentation to limit web interface access to authorized administrative hosts only
• Configure browser security policies to restrict cross-origin requests to the device web interface
• Enable and review audit logging for administrative actions performed through the web interface
• Apply defense-in-depth strategies for industrial control systems as recommended by CISA

Evidence notes

The vulnerability description and remediation details are sourced from CISA's CSAF advisory ICSA-24-165-13, which references Siemens' official security advisory SSA-196737. The CVSS vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) indicates local attack vector with low attack complexity, no privileges required, but user interaction required, leading to high impact on confidentiality, integrity, and availability.

Official resources