Siemens SIMATIC PCS 7/SIMATIC WinCC Project File privilege escalation

A vulnerability was found in Siemens SIMATIC PCS 7 and SIMATIC WinCC (affected version unknown). It has been declared as critical. Affected by this vulnerability is a code block of the component Project File Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-269. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions), SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC WinCC (TIA Portal) V13 (All versions), SIMATIC WinCC (TIA Portal) V14 (All versions), SIMATIC WinCC (TIA Portal) V15 (All versions), SIMATIC WinCC Runtime Professional (All versions), SIMATIC WinCC V7.2 and earlier (All versions), SIMATIC WinCC V7.3 (All versions), SIMATIC WinCC V7.4 (All versions), SIMATIC WinCC V7.5 (All versions < V7.5 Upd3). An attacker with access to the project file could run arbitrary system commands with the privileges of the local database server. The vulnerability could be exploited by an attacker with access to the project file. The vulnerability does impact the confidentiality, integrity, and availability of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known.

The weakness was published 05/14/2019. This vulnerability is known as CVE-2019-10916 since 04/08/2019. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/15/2019).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at 135026 and 135027.

Vendor

Name

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: ≈5.5
VulDB Temp Score: ≈5.5
VulDB Vector: ?
VulDB Reliability: ?

VulDB Base Score: ?
VulDB Temp Score: ?
VulDB Reliability: ?
Class: Privilege escalation (CWE-269)
Local: Yes
Remote: No

Availability: ?
Status: Not defined

Price Prediction: ?
Current Price Estimation: ?

Threat Intelligenceinfoedit

Threat: ?
Adversaries: ?
Geopolitics: ?
Economy: ?
Predictions: ?
Remediation: ?Recommended: no mitigation known
0-Day Time: ?04/08/2019 CVE assigned
05/14/2019 +36 days Advisory disclosed
05/15/2019 +1 days VulDB entry created
05/15/2019 +0 days VulDB last updateCVE: CVE-2019-10916 (?)
See also: ?Created: 05/15/2019 10:18 AM
Complete: ?

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