SB2019071205 - Arbitrary file upload in Siemens SIMATIC WinCC Professional
Published: July 12, 2019 Updated: July 12, 2019
Security Bulletin ID
SB2019071205
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Arbitrary file upload (CVE-ID: CVE-2019-10935)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file uploads. A remote authenticated user with network access to the WinCC DataMonitor application can upload arbitrary ASPX code on the server.
The vulnerability is relevant only in situations where an attacker has access via the web interface but not to the directory structure.
Remediation
Install update from vendor's website.