CVE-2020-25238 : Security Advisory and Response

A vulnerability has been identified in PCS neo (Administration Console) and TIA Portal by Siemens, allowing a local attacker to execute code with SYSTEM privileges.

Understanding CVE-2020-25238

This CVE involves improper access control in Siemens products, potentially leading to code execution by attackers with limited system access.

What is CVE-2020-25238?

The vulnerability in PCS neo (Administration Console) and TIA Portal versions V15, V15.1, and V16 could be exploited by manipulating specific files in certain folders.

The Impact of CVE-2020-25238

The security flaw enables a local attacker with a valid account and restricted access rights to execute code with SYSTEM privileges on the affected systems.

Technical Details of CVE-2020-25238

Siemens products PCS neo (Administration Console) and TIA Portal are affected by this vulnerability.

Vulnerability Description

The vulnerability arises from improper access control, allowing attackers to manipulate files and execute code with elevated privileges.

Affected Systems and Versions

PCS neo (Administration Console): All versions < V3.1
TIA Portal: V15, V15.1, and V16

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating specific files within designated folders, leveraging a valid account with limited access rights.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2020-25238.

Immediate Steps to Take

Apply security patches provided by Siemens promptly.
Restrict access to vulnerable systems and folders.
Monitor system activity for any suspicious behavior.

Long-Term Security Practices

Regularly update and patch all software and systems.
Conduct security training for employees to enhance awareness.
Implement least privilege access controls to limit potential damage.
Utilize intrusion detection systems to identify and respond to threats.

Patching and Updates

Ensure that all affected systems are updated with the latest patches and security fixes to address the vulnerability effectively.