CVE-2019-10925 : What You Need to Know

A security flaw has been discovered in the SIMATIC MV400 family (All Versions < V7.0.6) that could allow an attacker to escalate privileges by sending crafted requests to the webserver.

Understanding CVE-2019-10925

This CVE involves an improper access control vulnerability in the SIMATIC MV400 family.

What is CVE-2019-10925?

The vulnerability allows an authenticated attacker to increase their privileges by sending specific requests to the device's webserver.
It can be exploited by an attacker with network access and valid user credentials, without requiring user interaction.
Successful exploitation could compromise the device's integrity and availability.

The Impact of CVE-2019-10925

An attacker could potentially compromise the integrity and availability of the affected device.
No instances of public exploitation were known at the time of the advisory publication.

Technical Details of CVE-2019-10925

This section provides detailed technical information about the vulnerability.

Vulnerability Description

CWE-284: Improper Access Control
An attacker with authenticated access can escalate privileges through crafted requests to the webserver.

Affected Systems and Versions

Product: SIMATIC MV400 family
Vendor: Siemens
Versions Affected: All Versions < V7.0.6

Exploitation Mechanism

Attacker needs network access and valid user credentials to exploit the vulnerability.
No user interaction is required for successful exploitation.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2019-10925.

Immediate Steps to Take

Apply vendor-supplied patches or updates to fix the vulnerability.
Restrict network access to the device to trusted users only.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all software and firmware on the device.
Conduct security training for users to prevent unauthorized access.

Patching and Updates

Check with Siemens for available patches or updates to address the vulnerability.