CVE-2023-30757 : Vulnerability Insights and Analysis

A vulnerability has been identified in Totally Integrated Automation Portal (TIA Portal) affecting multiple versions that could allow attackers to recover unprotected versions of projects without knowledge of the know-how protection password.

Understanding CVE-2023-30757

This vulnerability in Siemens' TIA Portal affects various versions, potentially exposing sensitive project information to unauthorized access.

What is CVE-2023-30757?

The know-how protection feature in impacted TIA Portal versions fails to update the encryption of existing program blocks when a project file is updated. This oversight could enable malicious actors with access to the project file to retrieve previous unprotected project versions.

The Impact of CVE-2023-30757

The vulnerability poses a medium severity risk with a CVSS base score of 6.2, allowing attackers to circumvent protection mechanisms and access sensitive project data without authorization.

Technical Details of CVE-2023-30757

The vulnerability is classified under CWE-693: Protection Mechanism Failure. It affects Siemens' Totally Integrated Automation Portal (TIA Portal) versions 14 to 19, potentially exposing critical project information to exploitation.

Vulnerability Description

The flaw arises from the failure to update encryption on program blocks, facilitating unauthorized access to previous project versions without the required know-how protection password.

Affected Systems and Versions

Totally Integrated Automation Portal (TIA Portal) V14
Totally Integrated Automation Portal (TIA Portal) V15
Totally Integrated Automation Portal (TIA Portal) V15.1
Totally Integrated Automation Portal (TIA Portal) V16
Totally Integrated Automation Portal (TIA Portal) V17
Totally Integrated Automation Portal (TIA Portal) V18
Totally Integrated Automation Portal (TIA Portal) V19

Exploitation Mechanism

Attackers with access to the project file can exploit the vulnerability to retrieve unprotected project versions, potentially leading to unauthorized disclosure of sensitive project data.

Mitigation and Prevention

To address CVE-2023-30757, immediate steps and long-term security practices are recommended to enhance protection against unauthorized access and data exposure.

Immediate Steps to Take

Users are advised to restrict access to project files, apply the latest security patches, and monitor for any unauthorized access attempts to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly updating the TIA Portal to the latest version, implementing strong access controls, and educating users on secure data handling practices can help prevent unauthorized access and data breaches.

Patching and Updates

It is crucial for users to stay informed about security updates from Siemens and promptly apply patches to address vulnerabilities and enhance the security of the TIA Portal installation.