CVE-2019-18341 Explained : Impact and Mitigation

An authentication bypass vulnerability has been found in Siemens Control Center Server (CCS) versions earlier than V1.5.0, affecting the SFTP service running on port 22/tcp.

Understanding CVE-2019-18341

This CVE identifies an authentication bypass vulnerability in Siemens Control Center Server (CCS) versions prior to V1.5.0.

What is CVE-2019-18341?

The vulnerability allows remote attackers to access data from the EDIR directory on the CCS server, potentially compromising sensitive information.

The Impact of CVE-2019-18341

The vulnerability poses a medium severity risk with a CVSS base score of 5.3, allowing unauthorized access to station configurations.

Technical Details of CVE-2019-18341

Siemens Control Center Server (CCS) vulnerability details.

Vulnerability Description

CWE-287: Improper Authentication

Affected Systems and Versions

Vendor: Siemens
Product: Control Center Server (CCS)
Affected Versions: All versions < V1.5.0

Exploitation Mechanism

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None
Exploit Code Maturity: Functional
Remediation Level: Unavailable
Report Confidence: Confirmed

Mitigation and Prevention

Steps to address and prevent the CVE-2019-18341 vulnerability.

Immediate Steps to Take

Update CCS to version V1.5.0 or later to mitigate the vulnerability.
Monitor network traffic for any unauthorized access attempts.

Long-Term Security Practices

Implement strong access controls and authentication mechanisms.
Regularly review and update security configurations.

Patching and Updates

Apply security patches and updates provided by Siemens to address the vulnerability.