CVE-2019-10916 Explained : Impact and Mitigation

A security flaw has been discovered in various versions of SIMATIC PCS 7 and SIMATIC WinCC, allowing attackers to execute system commands with the same privileges as the local database server. This vulnerability compromises system confidentiality, integrity, and availability.

Understanding CVE-2019-10916

This CVE affects multiple versions of Siemens products, potentially leading to unauthorized system command execution.

What is CVE-2019-10916?

The vulnerability allows attackers with access to the project file to run arbitrary system commands with the local database server's privileges, impacting system security.

The Impact of CVE-2019-10916

Attackers can compromise system confidentiality, integrity, and availability by exploiting this vulnerability.
No reported instances of public exploitation have been documented as of now.

Technical Details of CVE-2019-10916

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in SIMATIC PCS 7 and SIMATIC WinCC allows unauthorized execution of system commands through the project file, posing a significant security risk.

Affected Systems and Versions

SIMATIC PCS 7 V8.0 and earlier
SIMATIC PCS 7 V8.1
SIMATIC PCS 7 V8.2
SIMATIC PCS 7 V9.0
SIMATIC WinCC (TIA Portal) V13
SIMATIC WinCC (TIA Portal) V14
SIMATIC WinCC (TIA Portal) V15
SIMATIC WinCC Runtime Professional V13
SIMATIC WinCC Runtime Professional V14
SIMATIC WinCC Runtime Professional V15
SIMATIC WinCC V7.2 and earlier
SIMATIC WinCC V7.3
SIMATIC WinCC V7.4
SIMATIC WinCC V7.5

Exploitation Mechanism

Attackers exploit the vulnerability by accessing the project file, enabling them to execute system commands with the database server's privileges.

Mitigation and Prevention

Protecting systems from CVE-2019-10916 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Siemens to address the vulnerability.
Restrict access to project files to authorized personnel only.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Regularly update and patch Siemens products to mitigate potential security risks.
Conduct security training for personnel to enhance awareness of system vulnerabilities.

Patching and Updates

Siemens may release patches to fix the vulnerability; ensure timely installation to secure systems.