CVE-2018-4844
First published: Tue Mar 20 2018(Updated: )
A vulnerability has been identified in SIMATIC WinCC OA UI for Android (All versions < V3.15.10), SIMATIC WinCC OA UI for iOS (All versions < V3.15.10). Insufficient limitation of CONTROL script capabilities could allow read and write access from one HMI project cache folder to other HMI project cache folders within the app's sandbox on the same mobile device. This includes HMI project cache folders of other configured WinCC OA servers. The security vulnerability could be exploited by an attacker who tricks an app user to connect to an attacker-controlled WinCC OA server. Successful exploitation requires user interaction and read/write access to the app's folder on a mobile device. The vulnerability could allow reading data from and writing data to the app's folder. At the time of advisory publication no public exploitation of this security vulnerability was known. Siemens confirms the security vulnerability and provides mitigations to resolve the security issue.
Credit: productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens SIMATIC WinCC Open Architecture | <3.15.10 | |
| Siemens SIMATIC WinCC Open Architecture | <3.15.10 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-4844?
CVE-2018-4844 has a medium severity due to insufficient limitations in CONTROL script capabilities.
How do I fix CVE-2018-4844?
To mitigate CVE-2018-4844, upgrade the SIMATIC WinCC OA UI for Android and iOS to version 3.15.10 or later.
Which versions of SIMATIC WinCC OA UI are affected by CVE-2018-4844?
All versions of SIMATIC WinCC OA UI for Android and iOS prior to version 3.15.10 are affected by CVE-2018-4844.
What type of access does CVE-2018-4844 potentially allow?
CVE-2018-4844 potentially allows read and write access between different HMI project cache folders.
Is CVE-2018-4844 a product-specific vulnerability?
Yes, CVE-2018-4844 specifically affects Siemens SIMATIC WinCC OA UI for Android and iOS.
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