PatchSiren cyber security CVE debrief

CVE-2024-35209 Siemens CVE debrief

A medium-severity vulnerability in Siemens SINEC Traffic Analyzer (6GK8822-1BG01-0BA0) allows unauthorized file modification due to improper HTTP method restrictions. The affected web server permits PUT and DELETE methods, which could enable attackers to modify files without proper authorization. This vulnerability was published on June 11, 2024, and last modified on May 6, 2025. Siemens has released a vendor fix in version 1.2 or later.

Vendor: Siemens
Product: SINEC Traffic Analyzer (6GK8822-1BG01-0BA0)
CVSS: MEDIUM 6.2
CISA KEV: Not listed in stored evidence
Original CVE published: 2024-06-11
Original CVE updated: 2025-05-06
Advisory published: 2024-06-11
Advisory updated: 2025-05-06

Who should care

Organizations operating Siemens SINEC Traffic Analyzer (6GK8822-1BG01-0BA0) in industrial environments, particularly those with exposed web management interfaces. Security teams responsible for OT/ICS infrastructure and compliance with industrial cybersecurity frameworks should prioritize patching.

Technical summary

The SINEC Traffic Analyzer web server improperly allows HTTP PUT and DELETE methods, enabling potential unauthorized file modification. The vulnerability requires local access (AV:L) with no privileges required (PR:N) and no user interaction (UI:N), resulting in high integrity impact (I:H) with no confidentiality or availability impact. The attack complexity is low (AC:L).

Defensive priority

medium

Recommended defensive actions

Update Siemens SINEC Traffic Analyzer to version 1.2 or later per vendor guidance
Review and restrict HTTP method configurations on affected web servers
Apply defense-in-depth strategies for industrial control systems per CISA guidance
Monitor for unauthorized file modifications on affected systems
Validate that web server configurations explicitly disable unnecessary HTTP methods

Evidence notes

The vulnerability description is sourced from CISA CSAF advisory ICSA-24-165-13, which references Siemens security advisory SSA-196737. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) indicates a local attack vector with high integrity impact. The affected product is confirmed as SINEC Traffic Analyzer (6GK8822-1BG01-0BA0) per the CSAF product tree with high confidence.

Official resources

2024-06-11