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Multiple Vulnerabilities in SINEMA Remote Connect Server Before V3.2 SP3

Monitor6.5SSA-073066Mar 11, 2025
Attack VectorNetwork
Auth RequiredLow
ComplexityLow
User InteractionNone needed
Summary

SINEMA Remote Connect Server before V3.2 SP3 contains multiple vulnerabilities related to improper input validation (CWE-117) and resource management (CWE-772). These flaws could allow an authenticated user to modify system records, including authentication logs and other audit trails, potentially enabling an attacker to cover tracks of unauthorized activity or alter evidence of system changes without leaving detectable records.

What this means
What could happen
An attacker with engineering workstation credentials could modify authentication logs or other system records, potentially covering tracks of unauthorized access or creating false evidence of legitimate activities.
Who's at risk
This affects industrial facilities and utilities that use Siemens SINEMA Remote Connect Server for secure remote management of industrial control systems, including water authorities, electric utilities, and manufacturing plants that rely on remote engineering access to configure and monitor PLCs and industrial networks.
How it could be exploited
An attacker with valid credentials logs into the SINEMA Remote Connect Server administrative interface and manipulates log files or authentication records through improper input validation or resource management flaws. This could allow them to alter historical records without detection.
Prerequisites
  • Valid engineering workstation or administrative credentials
  • Network access to SINEMA Remote Connect Server administrative port
  • Server running vulnerable version (before V3.2 SP3)
Remotely exploitableRequires valid credentialsLow complexity attackAffects system integrity and audit trails
Exploitability
Low exploit probability (EPSS 0.4%)
Affected products (1)
ProductAffected VersionsFix Status
SINEMA Remote Connect ServerAll versions < V3.2 SP33.2 SP3
Remediation & Mitigation
0/1
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpdate SINEMA Remote Connect Server to version 3.2 SP3 or later
View full Siemens ProductCERT advisory
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