PT-2013-32: Directory Traversal in Siemens Simatic WinCC TIA Portal

Vulnerable software

Siemens Simatic WinCC TIA Portal
Version: 11.x

Application link:
http://www.siemens.com/

Severity level

Severity level: Medium
Impact: Directory Traversal
Access Vector: Remote

CVSS v2:
Base Score: 4.0
Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:P)

CVE: CVE-2013-0671

Software description

WinCC TIA Portal is part of a new, integrated engineering concept which offers a uniform engineering environment for programming and configuration of control, visualization and drive solutions.

Vulnerability description

The specialists of the Positive Research center have detected “Directory Traversal” vulnerability in Siemens Simatic WinCC TIA Portal.

By manipulating the URL an authenticated attacker may have access to source code of the panel’s server-side web application files, which may include user defined scripts.

How to fix

Update your software up to the latest version

Advisory status

21.09.2012 - Vendor gets vulnerability details
15.03.2013 - Vendor releases fixed version and details
29.03.2013 - Public disclosure

Credits

The vulnerability was discovered by Sergey Bobrov, Roman Ilin, Ilya Karpov, Positive Research Center (Positive Technologies Company)

References

<http://en.securitylab.ru/lab/PT-2013-32&gt;
<http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-212483.pdf&gt;

Reports on the vulnerabilities previously discovered by Positive Research:

<http://ptsecurity.com/research/advisory/&gt;
<http://en.securitylab.ru/lab/&gt;